{"id":"https://openalex.org/W1997306036","doi":"https://doi.org/10.1021/jo062213y","title":"Synthesis, Configuration, and15N NMR Spectra of Iminoaziridines. Synthons Equivalent to Three Components of the Ugi Reaction","display_name":"Synthesis, Configuration, and15N NMR Spectra of Iminoaziridines. Synthons Equivalent to Three Components of the Ugi Reaction","publication_year":2007,"publication_date":"2007-01-27","ids":{"openalex":"https://openalex.org/W1997306036","doi":"https://doi.org/10.1021/jo062213y","mag":"1997306036","pmid":"https://pubmed.ncbi.nlm.nih.gov/17256991"},"language":"en","primary_location":{"id":"doi:10.1021/jo062213y","doi":"https://doi.org/10.1021/jo062213y","is_oa":false,"landing_page_url":"https://doi.org/10.1021/jo062213y","pdf_url":null,"source":{"id":"https://openalex.org/S205050996","display_name":"The Journal of Organic Chemistry","issn_l":"0022-3263","issn":["0022-3263","1520-6904"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-2","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320006","host_organization_name":"American Chemical Society","host_organization_lineage":["https://openalex.org/P4310320006"],"host_organization_lineage_names":["American Chemical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journal of Organic Chemistry","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5016921888","display_name":"Helmut Quast","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I25974101","display_name":"University of W\u00fcrzburg","ror":"https://ror.org/00fbnyb24","country_code":"DE","type":"education","lineage":["https://openalex.org/I25974101"]},{"id":"https://openalex.org/I2610724","display_name":"Chemnitz University of Technology","ror":"https://ror.org/00a208s56","country_code":"DE","type":"education","lineage":["https://openalex.org/I2610724"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Helmut Quast","raw_affiliation_strings":["Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany","institution_ids":["https://openalex.org/I25974101","https://openalex.org/I2610724"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003293170","display_name":"Sven Aldenkortt","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I25974101","display_name":"University of W\u00fcrzburg","ror":"https://ror.org/00fbnyb24","country_code":"DE","type":"education","lineage":["https://openalex.org/I25974101"]},{"id":"https://openalex.org/I2610724","display_name":"Chemnitz University of Technology","ror":"https://ror.org/00a208s56","country_code":"DE","type":"education","lineage":["https://openalex.org/I2610724"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Sven Aldenkortt","raw_affiliation_strings":["Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany","institution_ids":["https://openalex.org/I25974101","https://openalex.org/I2610724"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058954091","display_name":"Bernd Freudenreich","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I25974101","display_name":"University of W\u00fcrzburg","ror":"https://ror.org/00fbnyb24","country_code":"DE","type":"education","lineage":["https://openalex.org/I25974101"]},{"id":"https://openalex.org/I2610724","display_name":"Chemnitz University of Technology","ror":"https://ror.org/00a208s56","country_code":"DE","type":"education","lineage":["https://openalex.org/I2610724"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Bernd Freudenreich","raw_affiliation_strings":["Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany","institution_ids":["https://openalex.org/I25974101","https://openalex.org/I2610724"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035205197","display_name":"Peter Sch\u00e4fer","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I25974101","display_name":"University of W\u00fcrzburg","ror":"https://ror.org/00fbnyb24","country_code":"DE","type":"education","lineage":["https://openalex.org/I25974101"]},{"id":"https://openalex.org/I2610724","display_name":"Chemnitz University of Technology","ror":"https://ror.org/00a208s56","country_code":"DE","type":"education","lineage":["https://openalex.org/I2610724"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Peter Sch\u00e4fer","raw_affiliation_strings":["Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany","institution_ids":["https://openalex.org/I25974101","https://openalex.org/I2610724"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Manfred Hagedorn","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I25974101","display_name":"University of W\u00fcrzburg","ror":"https://ror.org/00fbnyb24","country_code":"DE","type":"education","lineage":["https://openalex.org/I25974101"]},{"id":"https://openalex.org/I2610724","display_name":"Chemnitz University of Technology","ror":"https://ror.org/00a208s56","country_code":"DE","type":"education","lineage":["https://openalex.org/I2610724"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Manfred Hagedorn","raw_affiliation_strings":["Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany","institution_ids":["https://openalex.org/I25974101","https://openalex.org/I2610724"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037480765","display_name":"Jens Lehmann","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I25974101","display_name":"University of W\u00fcrzburg","ror":"https://ror.org/00fbnyb24","country_code":"DE","type":"education","lineage":["https://openalex.org/I25974101"]},{"id":"https://openalex.org/I2610724","display_name":"Chemnitz University of Technology","ror":"https://ror.org/00a208s56","country_code":"DE","type":"education","lineage":["https://openalex.org/I2610724"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Jens Lehmann","raw_affiliation_strings":["Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany","institution_ids":["https://openalex.org/I25974101","https://openalex.org/I2610724"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091832020","display_name":"Klaus Banert","orcid":"https://orcid.org/0000-0003-2335-7523","observed_orcids":["https://orcid.org/0000-0003-2335-7523"]},"institutions":[{"id":"https://openalex.org/I25974101","display_name":"University of W\u00fcrzburg","ror":"https://ror.org/00fbnyb24","country_code":"DE","type":"education","lineage":["https://openalex.org/I25974101"]},{"id":"https://openalex.org/I2610724","display_name":"Chemnitz University of Technology","ror":"https://ror.org/00a208s56","country_code":"DE","type":"education","lineage":["https://openalex.org/I2610724"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Klaus Banert","raw_affiliation_strings":["Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institut f\u00fcr Organische Chemie der Universit\u00e4t W\u00fcrzburg, Am Hubland, D-97074 W\u00fcrzburg, and Institut f\u00fcr Chemie der Technischen Universit\u00e4t Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany","institution_ids":["https://openalex.org/I25974101","https://openalex.org/I2610724"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":4500,"currency":"USD","value_usd":4500},"apc_paid":null,"fwci":0.5128,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.58960804,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"72","issue":"5","first_page":"1659","last_page":"1666"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12410","display_name":"Structural and Chemical Analysis of Organic and Inorganic Compounds","score":0.6317999958992004,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12410","display_name":"Structural and Chemical Analysis of Organic and Inorganic Compounds","score":0.6317999958992004,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12251","display_name":"Synthesis and Catalytic Reactions","score":0.121799997985363,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14099","display_name":"Synthesis and Characterization of Heterocyclic Compounds","score":0.027699999511241913,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/ugi-reaction","display_name":"Ugi reaction","score":0.7379999756813049},{"id":"https://openalex.org/keywords/norbornane-derivatives","display_name":"norbornane derivatives","score":0.7089999914169312},{"id":"https://openalex.org/keywords/e-z-isomerism","display_name":"E/Z isomerism","score":0.6740000247955322},{"id":"https://openalex.org/keywords/alkali-metal-hydrides","display_name":"alkali metal hydrides","score":0.7870000004768372},{"id":"https://openalex.org/keywords/tert-butoxide","display_name":"tert-butoxide","score":0.843999981880188},{"id":"https://openalex.org/keywords/15n-chemical-shifts","display_name":"15N chemical shifts","score":0.8420000076293945},{"id":"https://openalex.org/keywords/gamma-effect","display_name":"gamma effect","score":0.4180000126361847},{"id":"https://openalex.org/keywords/substituent-effects","display_name":"substituent effects","score":0.578000009059906},{"id":"https://openalex.org/keywords/nuclear-overhauser-effect","display_name":"nuclear Overhauser effect","score":0.5090000033378601},{"id":"https://openalex.org/keywords/13c-nmr-spectroscopy","display_name":"13C NMR","score":0.6740000247955322},{"id":"https://openalex.org/keywords/1h-1h-coupling","display_name":"1H-1H coupling","score":0.7089999914169312},{"id":"https://openalex.org/keywords/building-blocks","display_name":"building blocks","score":0.3269999921321869}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.949112057685852},{"id":"https://openalex.org/C40869318","wikidata":"https://www.wikidata.org/wiki/Q899050","display_name":"Synthon","level":2,"score":0.9025794267654419},{"id":"https://openalex.org/C67787023","wikidata":"https://www.wikidata.org/wiki/Q6954755","display_name":"NMR spectra database","level":3,"score":0.5466145277023315},{"id":"https://openalex.org/C40325409","wikidata":"https://www.wikidata.org/wiki/Q2360668","display_name":"Mass spectrum","level":3,"score":0.44892922043800354},{"id":"https://openalex.org/C4839761","wikidata":"https://www.wikidata.org/wiki/Q212111","display_name":"Spectral line","level":2,"score":0.4399174749851227},{"id":"https://openalex.org/C66974803","wikidata":"https://www.wikidata.org/wiki/Q10359898","display_name":"Nuclear magnetic resonance spectroscopy","level":2,"score":0.43837568163871765},{"id":"https://openalex.org/C71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","level":1,"score":0.4083445072174072},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.2111884355545044},{"id":"https://openalex.org/C145148216","wikidata":"https://www.wikidata.org/wiki/Q36496","display_name":"Ion","level":2,"score":0.05441024899482727},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1021/jo062213y","doi":"https://doi.org/10.1021/jo062213y","is_oa":false,"landing_page_url":"https://doi.org/10.1021/jo062213y","pdf_url":null,"source":{"id":"https://openalex.org/S205050996","display_name":"The Journal of Organic Chemistry","issn_l":"0022-3263","issn":["0022-3263","1520-6904"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-2","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320006","host_organization_name":"American Chemical Society","host_organization_lineage":["https://openalex.org/P4310320006"],"host_organization_lineage_names":["American Chemical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journal of Organic Chemistry","raw_type":"journal-article"},{"id":"pmid:17256991","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/17256991","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journal of organic chemistry","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":64,"referenced_works":["https://openalex.org/W1489098768","https://openalex.org/W1496083612","https://openalex.org/W1550159159","https://openalex.org/W1564788148","https://openalex.org/W1611812152","https://openalex.org/W1919935456","https://openalex.org/W1965627646","https://openalex.org/W1967144153","https://openalex.org/W1968819357","https://openalex.org/W1971965575","https://openalex.org/W1972424672","https://openalex.org/W1981090061","https://openalex.org/W1988605904","https://openalex.org/W1992620432","https://openalex.org/W1994895753","https://openalex.org/W1995892115","https://openalex.org/W2006505724","https://openalex.org/W2007296700","https://openalex.org/W2009588223","https://openalex.org/W2010686286","https://openalex.org/W2011464426","https://openalex.org/W2017356416","https://openalex.org/W2017406707","https://openalex.org/W2021358299","https://openalex.org/W2025519358","https://openalex.org/W2025569238","https://openalex.org/W2027441031","https://openalex.org/W2029049246","https://openalex.org/W2029839907","https://openalex.org/W2030894676","https://openalex.org/W2033650360","https://openalex.org/W2033912795","https://openalex.org/W2034429268","https://openalex.org/W2035815039","https://openalex.org/W2038348906","https://openalex.org/W2043169152","https://openalex.org/W2047526655","https://openalex.org/W2048756622","https://openalex.org/W2059760122","https://openalex.org/W2061584439","https://openalex.org/W2066075921","https://openalex.org/W2067226941","https://openalex.org/W2072007818","https://openalex.org/W2083093309","https://openalex.org/W2089869192","https://openalex.org/W2091119647","https://openalex.org/W2094142236","https://openalex.org/W2099492581","https://openalex.org/W2111677437","https://openalex.org/W2119587848","https://openalex.org/W2127378043","https://openalex.org/W2143136608","https://openalex.org/W2166543626","https://openalex.org/W2170960684","https://openalex.org/W2313243046","https://openalex.org/W2317188574","https://openalex.org/W2323431691","https://openalex.org/W2335239378","https://openalex.org/W2950576909","https://openalex.org/W2951504789","https://openalex.org/W2951676386","https://openalex.org/W3004774373","https://openalex.org/W3005114382","https://openalex.org/W4249712281"],"related_works":["https://openalex.org/W2166543626","https://openalex.org/W2072311692","https://openalex.org/W2172086450","https://openalex.org/W4280517461","https://openalex.org/W2044095176","https://openalex.org/W2043191430","https://openalex.org/W2075384743","https://openalex.org/W2168824154","https://openalex.org/W2500454626","https://openalex.org/W2015098338"],"abstract_inverted_index":{"Monocyclic":[0],"iminoaziridines":[1,7],"and":[2,73,83,95,142],"exo-endo":[3],"diastereomers":[4,66],"of":[5,17,62,67,91,108,126,151,167,172],"spirocyclic":[6],"that":[8,85,136],"are":[9,13,33,42,75,140],"derived":[10],"from":[11,39],"norbornane":[12],"prepared":[14],"in":[15,28,36,101,122],"batches":[16],"up":[18],"to":[19,22,53,117],"10":[20],"g":[21],"foster":[23],"applications":[24],"as":[25,48],"building":[26],"blocks":[27],"syntheses.":[29],"N,N'-Disubstituted":[30],"alpha-haloamidines,":[31],"which":[32,60],"readily":[34],"available":[35],"two":[37],"steps":[38],"N-substituted":[40],"alpha-halocarboxamides,":[41],"1,3-dehydrohalogenated":[43],"by":[44],"strong":[45],"bases":[46],"such":[47],"alkali-metal":[49],"hydrides":[50],"or":[51,57],"tert-butoxides":[52],"afford":[54],"distillable":[55],"oils":[56],"low-melting":[58],"solids,":[59],"consist":[61],"slowly":[63],"interconverting":[64],"E-Z":[65],"the":[68,89,105,111,118,137,144,162,165],"title":[69],"compounds.":[70,128],"The":[71,80,149],"scope":[72],"limitations":[74],"outlined":[76],"for":[77],"this":[78],"reaction.":[79],"configurations":[81],"E":[82],"Z":[84],"were":[86,114],"assigned":[87],"on":[88,169],"basis":[90],"homoallylic":[92],"1H-1H":[93],"coupling":[94],"asymmetric":[96],"solvent-induced":[97],"shifts":[98,155],"required":[99],"that,":[100],"13C":[102],"NMR":[103,132,153],"spectra,":[104],"observed":[106,145],"gamma-effects":[107,121,146,166],"substitutents":[109],"at":[110],"imino":[112],"nitrogens":[113],"deshielding,":[115],"contrary":[116],"well-known":[119],"shielding":[120],"all":[123],"other":[124],"types":[125,171],"C=N":[127],"However,":[129],"an":[130],"NOE":[131],"study":[133],"demonstrated":[134],"unequivocally":[135],"previous":[138],"assignments":[139],"correct":[141],"hence":[143],"actually":[147],"deshielding.":[148],"ranges":[150],"15N":[152],"chemical":[154],"span":[156],"more":[157],"than":[158],"60":[159],"ppm.":[160],"Neither":[161],"beta-":[163],"nor":[164],"substituents":[168],"both":[170],"nitrogen":[173],"follow":[174],"a":[175],"uniform":[176],"increment":[177],"pattern.":[178]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2015,"cited_by_count":2}],"updated_date":"2026-09-29T14:09:16.559479","created_date":"2016-06-24T00:00:00"}