{"id":"https://openalex.org/W1992057320","doi":"https://doi.org/10.1055/s-2007-968998","title":"7-Azaindolium TFPB: Efficient H-Bonding Catalyst","display_name":"7-Azaindolium TFPB: Efficient H-Bonding Catalyst","publication_year":2007,"publication_date":"2007-09-19","ids":{"openalex":"https://openalex.org/W1992057320","doi":"https://doi.org/10.1055/s-2007-968998","mag":"1992057320"},"language":"en","primary_location":{"id":"doi:10.1055/s-2007-968998","doi":"https://doi.org/10.1055/s-2007-968998","is_oa":false,"landing_page_url":"https://doi.org/10.1055/s-2007-968998","pdf_url":null,"source":{"id":"https://openalex.org/S135102583","display_name":"Synfacts","issn_l":"1861-194X","issn":["1861-194X","1861-1958"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310321135","host_organization_name":"Georg Thieme Verlag","host_organization_lineage":["https://openalex.org/P4310321135","https://openalex.org/P4310320000"],"host_organization_lineage_names":["Georg Thieme Verlag","Thieme Medical Publishers (Germany)"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Synfacts","raw_type":"journal-article"},"volume":null,"type":"editorial","indexed_in":["crossref"],"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/A5049121623","display_name":"Norito Takenaka","orcid":"https://orcid.org/0000-0003-3542-1086","observed_orcids":["https://orcid.org/0000-0003-3542-1086"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"N. Takenaka","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018074603","display_name":"Robindro Singh Sarangthem","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"R. S. Sarangthem","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5062621012","display_name":"Sreehari Kumar Seerla","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"S. K. Seerla","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":"2007","issue":"10","first_page":"1098","last_page":"1098"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12973","display_name":"Synthesis of Indole Derivatives","score":0.39259999990463257,"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/T12973","display_name":"Synthesis of Indole Derivatives","score":0.39259999990463257,"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/T10013","display_name":"Asymmetric Synthesis and Catalysis","score":0.3037000000476837,"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/T12893","display_name":"Organic Chemistry Cycloaddition Reactions","score":0.0820000022649765,"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/hydrogen-bonding-catalysts","display_name":"hydrogen-bonding catalysts","score":0.781000018119812},{"id":"https://openalex.org/keywords/nitroalkenes","display_name":"nitroalkenes","score":0.8790000081062317},{"id":"https://openalex.org/keywords/conjugate-addition","display_name":"conjugate addition","score":0.9330000281333923},{"id":"https://openalex.org/keywords/diels-alder-reaction","display_name":"Diels-Alder reaction","score":0.859000027179718},{"id":"https://openalex.org/keywords/cyclopentadiene","display_name":"cyclopentadiene","score":0.9079999923706055},{"id":"https://openalex.org/keywords/n-methylindole","display_name":"N-methylindole","score":0.746999979019165},{"id":"https://openalex.org/keywords/low-catalyst-loading","display_name":"low catalyst loading","score":0.6010000109672546}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.892371654510498},{"id":"https://openalex.org/C161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","level":2,"score":0.8720884323120117},{"id":"https://openalex.org/C197336794","wikidata":"https://www.wikidata.org/wiki/Q5161150","display_name":"Conjugate","level":2,"score":0.8071758151054382},{"id":"https://openalex.org/C192527728","wikidata":"https://www.wikidata.org/wiki/Q1465700","display_name":"Indole test","level":2,"score":0.7706365585327148},{"id":"https://openalex.org/C2778176622","wikidata":"https://www.wikidata.org/wiki/Q424390","display_name":"Cyclopentadiene","level":3,"score":0.6405025720596313},{"id":"https://openalex.org/C112613896","wikidata":"https://www.wikidata.org/wiki/Q898370","display_name":"Conjugated system","level":3,"score":0.6103883981704712},{"id":"https://openalex.org/C118792377","wikidata":"https://www.wikidata.org/wiki/Q108584245","display_name":"Selectivity","level":3,"score":0.512351393699646},{"id":"https://openalex.org/C155647269","wikidata":"https://www.wikidata.org/wiki/Q243455","display_name":"Medicinal chemistry","level":1,"score":0.40963566303253174},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.39403289556503296},{"id":"https://openalex.org/C21951064","wikidata":"https://www.wikidata.org/wiki/Q899212","display_name":"Combinatorial chemistry","level":1,"score":0.3392677307128906},{"id":"https://openalex.org/C521977710","wikidata":"https://www.wikidata.org/wiki/Q81163","display_name":"Polymer","level":2,"score":0.13616403937339783},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1055/s-2007-968998","doi":"https://doi.org/10.1055/s-2007-968998","is_oa":false,"landing_page_url":"https://doi.org/10.1055/s-2007-968998","pdf_url":null,"source":{"id":"https://openalex.org/S135102583","display_name":"Synfacts","issn_l":"1861-194X","issn":["1861-194X","1861-1958"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310321135","host_organization_name":"Georg Thieme Verlag","host_organization_lineage":["https://openalex.org/P4310321135","https://openalex.org/P4310320000"],"host_organization_lineage_names":["Georg Thieme Verlag","Thieme Medical Publishers (Germany)"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Synfacts","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2949573161","https://openalex.org/W2151830395","https://openalex.org/W4387672503","https://openalex.org/W2172065784","https://openalex.org/W69562601","https://openalex.org/W2400226932","https://openalex.org/W2892079483","https://openalex.org/W2432536173","https://openalex.org/W1992105700","https://openalex.org/W4402442988"],"abstract_inverted_index":{"Significance":[0],"7-Azaindolium":[1],"TFPB":[2,103],"3":[3,50,85,113],"was":[4,51],"found":[5],"to":[6,53,100],"efficiently":[7],"activate":[8],"nitroalkenes":[9,74,91],"1":[10,92],"towards":[11],"conjugate":[12],"addition":[13],"of":[14,25,37,44,73,83,90],"electron-rich":[15],"heteroarenes":[16],"and":[17,109,119],"arenes":[18],"(1":[19],"example)":[20],"2":[21],".":[22],"Excellent":[23],"yields":[24,118],"products":[26],"4":[27],"could":[28],"be":[29],"obtained":[30],"with":[31,93],"the":[32,42,55,66,87,106],"remarkably":[33],"low":[34],"catalyst":[35,84,112],"loading":[36],"only":[38],"0.5":[39],"mol%.":[40],"In":[41],"case":[43],"N":[45],"-methyl":[46],"indole,":[47],"0.05":[48],"mol%":[49,82],"sufficient":[52],"promote":[54],"reaction":[56,89],"(see":[57],"example":[58],"5":[59],").":[60],"The":[61],"present":[62],"work":[63],"also":[64],"includes":[65],"first":[67],"report":[68],"on":[69],"Diels-Alder":[70],"(DA)":[71],"reactions":[72],"mediated":[75],"by":[76],"an":[77],"H-bonding":[78],"catalyst.":[79],"With":[80],"20":[81],",":[86,105],"DA":[88],"cyclopentadiene":[94],"gives":[95],"moderate":[96],"yields.":[97],"When":[98],"compared":[99],"acyclic":[101],"2-benzylaminopyridinium":[102],"6":[104],"conformationally":[107],"rigid":[108],"fully":[110],"conjugated":[111],"gave":[114],"improved":[115],"results":[116],"regarding":[117],"selectivity.":[120]},"counts_by_year":[],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2016-06-24T00:00:00"}
