{"id":"https://openalex.org/W2005381443","doi":"https://doi.org/10.1002/asia.200700324","title":"A New Class of Substrates for Nucleophilic 5\u2010endo\u2010trig Cyclization, 2\u2010Trifluoromethyl\u20101\u2010alkenes: Synthesis of Five\u2010Membered Hetero\u2010 and Carbocycles That Bear Fluorinated One\u2010Carbon Units","display_name":"A New Class of Substrates for Nucleophilic 5\u2010endo\u2010trig Cyclization, 2\u2010Trifluoromethyl\u20101\u2010alkenes: Synthesis of Five\u2010Membered Hetero\u2010 and Carbocycles That Bear Fluorinated One\u2010Carbon Units","publication_year":2008,"publication_date":"2008-01-18","ids":{"openalex":"https://openalex.org/W2005381443","doi":"https://doi.org/10.1002/asia.200700324","mag":"2005381443","pmid":"https://pubmed.ncbi.nlm.nih.gov/18203213"},"language":"en","primary_location":{"id":"doi:10.1002/asia.200700324","doi":"https://doi.org/10.1002/asia.200700324","is_oa":false,"landing_page_url":"https://doi.org/10.1002/asia.200700324","pdf_url":null,"source":{"id":"https://openalex.org/S188582317","display_name":"Chemistry - An Asian Journal","issn_l":"1861-471X","issn":["1861-471X","1861-4728"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Chemistry \u2013 An Asian Journal","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://tsukuba.repo.nii.ac.jp/records/15562","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5030722990","display_name":"Junji Ichikawa","orcid":"https://orcid.org/0000-0001-6498-326X","observed_orcids":["https://orcid.org/0000-0001-6498-326X"]},"institutions":[{"id":"https://openalex.org/I146399215","display_name":"University of Tsukuba","ror":"https://ror.org/02956yf07","country_code":"JP","type":"education","lineage":["https://openalex.org/I146399215"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Junji Ichikawa","raw_affiliation_strings":["Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan. junji@chem.tsukuba.ac.jp","Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan, Fax: (+81)\u200929-853-4237"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan. junji@chem.tsukuba.ac.jp","institution_ids":["https://openalex.org/I146399215"]},{"raw_affiliation_string":"Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan, Fax: (+81)\u200929-853-4237","institution_ids":["https://openalex.org/I146399215"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012172701","display_name":"Yu Iwai","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yu Iwai","raw_affiliation_strings":["Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008666866","display_name":"Ryo Nadano","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ryo Nadano","raw_affiliation_strings":["Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Takashi Mori","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takashi Mori","raw_affiliation_strings":["Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102864018","display_name":"Masahiro Ikeda","orcid":"https://orcid.org/0009-0005-3264-7460","observed_orcids":["https://orcid.org/0009-0005-3264-7460"]},"institutions":[{"id":"https://openalex.org/I146399215","display_name":"University of Tsukuba","ror":"https://ror.org/02956yf07","country_code":"JP","type":"education","lineage":["https://openalex.org/I146399215"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masahiro Ikeda","raw_affiliation_strings":["Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan,","Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan, Fax: (+81)\u200929-853-4237"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan,","institution_ids":["https://openalex.org/I146399215"]},{"raw_affiliation_string":"Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan, Fax: (+81)\u200929-853-4237","institution_ids":["https://openalex.org/I146399215"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":4520,"currency":"USD","value_usd":4520},"apc_paid":null,"fwci":1.2548,"has_fulltext":false,"cited_by_count":61,"citation_normalized_percentile":{"value":0.75556159,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":93,"max":99},"biblio":{"volume":"3","issue":"2","first_page":"393","last_page":"406"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10947","display_name":"Fluorine in Organic Chemistry","score":0.986299991607666,"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/T10947","display_name":"Fluorine in Organic Chemistry","score":0.986299991607666,"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/T13859","display_name":"Organic Chemistry Synthesis Methods","score":0.003100000089034438,"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/T14068","display_name":"Organic and Inorganic Chemical Reactions","score":0.001500000013038516,"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/5-endo-trig-cyclization","display_name":"5-endo-trig cyclization","score":0.9919999837875366},{"id":"https://openalex.org/keywords/nucleophilic-cyclization","display_name":"nucleophilic cyclization","score":0.7129999995231628},{"id":"https://openalex.org/keywords/intramolecular-nucleophilic-addition","display_name":"intramolecular nucleophilic addition","score":0.9350000023841858},{"id":"https://openalex.org/keywords/five-membered-heterocycles","display_name":"five-membered heterocycles","score":0.8040000200271606},{"id":"https://openalex.org/keywords/five-membered-carbocycles","display_name":"five-membered carbocycles","score":0.8690000176429749},{"id":"https://openalex.org/keywords/indolines","display_name":"indolines","score":0.9549999833106995},{"id":"https://openalex.org/keywords/indole","display_name":"indole","score":0.9980000257492065},{"id":"https://openalex.org/keywords/pyrrolidine","display_name":"pyrrolidine","score":1.0},{"id":"https://openalex.org/keywords/tetrahydrofuran","display_name":"tetrahydrofuran","score":0.9829999804496765},{"id":"https://openalex.org/keywords/tetrahydrothiophene","display_name":"tetrahydrothiophene","score":0.9919999837875366},{"id":"https://openalex.org/keywords/cyclopentane","display_name":"cyclopentane","score":0.9760000109672546},{"id":"https://openalex.org/keywords/trifluoromethyl","display_name":"trifluoromethyl","score":0.9959999918937683}],"concepts":[{"id":"https://openalex.org/C2776442012","wikidata":"https://www.wikidata.org/wiki/Q2302144","display_name":"Trifluoromethyl","level":3,"score":0.843926191329956},{"id":"https://openalex.org/C178907741","wikidata":"https://www.wikidata.org/wiki/Q745930","display_name":"Nucleophile","level":3,"score":0.789754331111908},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.630072295665741},{"id":"https://openalex.org/C140205800","wikidata":"https://www.wikidata.org/wiki/Q5860","display_name":"Carbon fibers","level":3,"score":0.4821617007255554},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.4427040219306946},{"id":"https://openalex.org/C155647269","wikidata":"https://www.wikidata.org/wiki/Q243455","display_name":"Medicinal chemistry","level":1,"score":0.43351253867149353},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.4178413450717926},{"id":"https://openalex.org/C71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","level":1,"score":0.4127025902271271},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.08701246976852417},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.07049316167831421},{"id":"https://openalex.org/C2780263894","wikidata":"https://www.wikidata.org/wiki/Q335268","display_name":"Alkyl","level":2,"score":0.052817344665527344},{"id":"https://openalex.org/C161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","level":2,"score":0.04395914077758789},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C104779481","wikidata":"https://www.wikidata.org/wiki/Q50707","display_name":"Composite number","level":2,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1002/asia.200700324","doi":"https://doi.org/10.1002/asia.200700324","is_oa":false,"landing_page_url":"https://doi.org/10.1002/asia.200700324","pdf_url":null,"source":{"id":"https://openalex.org/S188582317","display_name":"Chemistry - An Asian Journal","issn_l":"1861-471X","issn":["1861-471X","1861-4728"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Chemistry \u2013 An Asian Journal","raw_type":"journal-article"},{"id":"pmid:18203213","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/18203213","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":"Chemistry, an Asian journal","raw_type":"Journal Article"},{"id":"pmh:oai:irdb.nii.ac.jp:00843:0001606867","doi":null,"is_oa":true,"landing_page_url":"https://tsukuba.repo.nii.ac.jp/records/15562","pdf_url":null,"source":{"id":"https://openalex.org/S7407056385","display_name":"Institutional Repositories DataBase (IRDB)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I184597095","host_organization_name":"National Institute of Informatics","host_organization_lineage":["https://openalex.org/I184597095"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"Chemistry : an Asian journal","raw_type":"journal article"},{"id":"pmh:oai:tsukuba.repo.nii.ac.jp:00015562","doi":null,"is_oa":false,"landing_page_url":"http://hdl.handle.net/2241/98539","pdf_url":null,"source":{"id":"https://openalex.org/S4306402076","display_name":"Terrestrial Environment Research Center (University of Tsukuba)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I146399215","host_organization_name":"University of Tsukuba","host_organization_lineage":["https://openalex.org/I146399215"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":{"id":"pmh:oai:irdb.nii.ac.jp:00843:0001606867","doi":null,"is_oa":true,"landing_page_url":"https://tsukuba.repo.nii.ac.jp/records/15562","pdf_url":null,"source":{"id":"https://openalex.org/S7407056385","display_name":"Institutional Repositories DataBase (IRDB)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I184597095","host_organization_name":"National Institute of Informatics","host_organization_lineage":["https://openalex.org/I184597095"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"Chemistry : an Asian journal","raw_type":"journal article"},"sustainable_development_goals":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G8103723823","display_name":"A GENERAL METHOD FOR THE SYNTHESIS OF POLYCYCLIC AROMATIC HYDROCARBONS BASED ON SEQUENCIAL CATIONIC CYCLIZATIONS","funder_award_id":"20350016","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"}],"funders":[{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":83,"referenced_works":["https://openalex.org/W80861644","https://openalex.org/W114416931","https://openalex.org/W180766444","https://openalex.org/W233628489","https://openalex.org/W1512299273","https://openalex.org/W1965280996","https://openalex.org/W1967841286","https://openalex.org/W1970557232","https://openalex.org/W1972863235","https://openalex.org/W1974519691","https://openalex.org/W1978936174","https://openalex.org/W1982066559","https://openalex.org/W1982741557","https://openalex.org/W1989013173","https://openalex.org/W1997579138","https://openalex.org/W1999933275","https://openalex.org/W2001614776","https://openalex.org/W2008455207","https://openalex.org/W2008809042","https://openalex.org/W2009809953","https://openalex.org/W2012839861","https://openalex.org/W2012961504","https://openalex.org/W2013470012","https://openalex.org/W2015505521","https://openalex.org/W2015555480","https://openalex.org/W2016422881","https://openalex.org/W2021846814","https://openalex.org/W2023363265","https://openalex.org/W2038045881","https://openalex.org/W2038588110","https://openalex.org/W2040327336","https://openalex.org/W2041575746","https://openalex.org/W2044262878","https://openalex.org/W2054306881","https://openalex.org/W2057640071","https://openalex.org/W2058522418","https://openalex.org/W2074544798","https://openalex.org/W2075838501","https://openalex.org/W2076045168","https://openalex.org/W2076328278","https://openalex.org/W2079865685","https://openalex.org/W2082136372","https://openalex.org/W2088655952","https://openalex.org/W2089189696","https://openalex.org/W2090563592","https://openalex.org/W2090886394","https://openalex.org/W2091237203","https://openalex.org/W2106389133","https://openalex.org/W2108877262","https://openalex.org/W2109502350","https://openalex.org/W2117741754","https://openalex.org/W2121893642","https://openalex.org/W2131643233","https://openalex.org/W2133144587","https://openalex.org/W2164484234","https://openalex.org/W2168165971","https://openalex.org/W2168604373","https://openalex.org/W2174919770","https://openalex.org/W2176332757","https://openalex.org/W2179187731","https://openalex.org/W2181228306","https://openalex.org/W2322164546","https://openalex.org/W2485071058","https://openalex.org/W2738313407","https://openalex.org/W2915298571","https://openalex.org/W2943026511","https://openalex.org/W2949071552","https://openalex.org/W2949535522","https://openalex.org/W2950194414","https://openalex.org/W2950408195","https://openalex.org/W2950611929","https://openalex.org/W2950880532","https://openalex.org/W2950976122","https://openalex.org/W2951214153","https://openalex.org/W2951434481","https://openalex.org/W2952137733","https://openalex.org/W2952269436","https://openalex.org/W2952555003","https://openalex.org/W2952834804","https://openalex.org/W4232404589","https://openalex.org/W4236936474","https://openalex.org/W4242354732","https://openalex.org/W4244212016"],"related_works":["https://openalex.org/W2109502350","https://openalex.org/W2952556475","https://openalex.org/W2952834804","https://openalex.org/W2952169288","https://openalex.org/W2036742888","https://openalex.org/W2901262210","https://openalex.org/W2097570703","https://openalex.org/W2173464958","https://openalex.org/W2051013212","https://openalex.org/W1982505868"],"abstract_inverted_index":{"Disfavored":[0],"5-endo-trig":[1],"cyclizations":[2],"were":[3],"achieved":[4],"in":[5],"2-trifluoromethyl-1-alkenes":[6],"with":[7,21],"a":[8,24,40,57,63],"nucleophilic":[9,30],"nitrogen,":[10],"oxygen,":[11],"sulfur,":[12],"or":[13,27,66],"carbon":[14],"atom":[15],"through":[16],"1)":[17],"intramolecular":[18,29],"S(N)2'":[19],"reaction":[20,37],"loss":[22],"of":[23,46],"fluoride":[25],"ion":[26],"2)":[28],"addition":[31],"to":[32],"the":[33,44],"vinylic":[34],"group.":[35,68],"This":[36],"manifold":[38],"provides":[39],"versatile":[41],"method":[42],"for":[43],"synthesis":[45],"indolines,":[47],"indoles,":[48],"pyrrolidines,":[49],"tetrahydrofurans,":[50],"2,3-dihydrobenzo[b]thiophenes,":[51],"tetrahydrothiophenes,":[52],"and":[53],"cyclopentanes":[54],"that":[55],"bear":[56],"fluorinated":[58],"one-carbon":[59],"unit":[60],"such":[61],"as":[62],"difluoromethylene,":[64],"difluoromethyl,":[65],"trifluoromethyl":[67]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":9},{"year":2017,"cited_by_count":4},{"year":2016,"cited_by_count":5},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":5},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":2}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-06-24T00:00:00"}
