{"id":"https://openalex.org/W2032887296","doi":"https://doi.org/10.1246/bcsj.56.3703","title":"Studies on Heterocyclic Analogs of Azulenes. XI. Syntheses and Cycloadditions of Cyclohepta[4,5]pyrrolo[1,2-a]imidazoles and Cyclohept[d]imidazo[1,2-a]imidazoles","display_name":"Studies on Heterocyclic Analogs of Azulenes. XI. Syntheses and Cycloadditions of Cyclohepta[4,5]pyrrolo[1,2-a]imidazoles and Cyclohept[d]imidazo[1,2-a]imidazoles","publication_year":1983,"publication_date":"1983-12-01","ids":{"openalex":"https://openalex.org/W2032887296","doi":"https://doi.org/10.1246/bcsj.56.3703","mag":"2032887296"},"language":"en","primary_location":{"id":"doi:10.1246/bcsj.56.3703","doi":"https://doi.org/10.1246/bcsj.56.3703","is_oa":false,"landing_page_url":"http://www.journal.csj.jp/doi/pdf/10.1246/bcsj.56.3703","pdf_url":null,"source":{"id":"https://openalex.org/S95305481","display_name":"Bulletin of the Chemical Society of Japan","issn_l":"0009-2673","issn":["0009-2673","1348-0634"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","norway-1","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310311648","host_organization_name":"Oxford University Press","host_organization_lineage":["https://openalex.org/P4310311648","https://openalex.org/P4310311647"],"host_organization_lineage_names":["Oxford University Press","University of Oxford"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Bulletin of the Chemical Society of Japan","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5113548762","display_name":"Noritaka Abe","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I173915773","display_name":"Yamaguchi University","ror":"https://ror.org/03cxys317","country_code":"JP","type":"education","lineage":["https://openalex.org/I173915773"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Noritaka Abe","raw_affiliation_strings":["Department of Chemistry, Faculty of Sciences, Yamaguchi University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Faculty of Sciences, Yamaguchi University","institution_ids":["https://openalex.org/I173915773"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008694432","display_name":"Tarozaemon Nishiwaki","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I173915773","display_name":"Yamaguchi University","ror":"https://ror.org/03cxys317","country_code":"JP","type":"education","lineage":["https://openalex.org/I173915773"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tarozaemon Nishiwaki","raw_affiliation_strings":["Department of Chemistry, Faculty of Sciences, Yamaguchi University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Faculty of Sciences, Yamaguchi University","institution_ids":["https://openalex.org/I173915773"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103526120","display_name":"Hideko Yamamoto","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I173915773","display_name":"Yamaguchi University","ror":"https://ror.org/03cxys317","country_code":"JP","type":"education","lineage":["https://openalex.org/I173915773"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hideko Yamamoto","raw_affiliation_strings":["Department of Chemistry, Faculty of Sciences, Yamaguchi University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Faculty of Sciences, Yamaguchi University","institution_ids":["https://openalex.org/I173915773"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003087756","display_name":"N. KUNISHIGE","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I173915773","display_name":"Yamaguchi University","ror":"https://ror.org/03cxys317","country_code":"JP","type":"education","lineage":["https://openalex.org/I173915773"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Noboru Kunishige","raw_affiliation_strings":["Department of Chemistry, Faculty of Sciences, Yamaguchi University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Faculty of Sciences, Yamaguchi University","institution_ids":["https://openalex.org/I173915773"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I173915773"],"apc_list":{"value":305000,"currency":"JPY","value_usd":2040},"apc_paid":null,"fwci":0.5667,"has_fulltext":false,"cited_by_count":18,"citation_normalized_percentile":{"value":0.54015687,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"56","issue":"12","first_page":"3703","last_page":"3714"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12893","display_name":"Organic Chemistry Cycloaddition Reactions","score":0.38089999556541443,"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/T12893","display_name":"Organic Chemistry Cycloaddition Reactions","score":0.38089999556541443,"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/T11298","display_name":"Synthesis and Properties of Aromatic Compounds","score":0.18080000579357147,"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/T12562","display_name":"Synthesis and Characterization of Pyrroles","score":0.08699999749660492,"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/cycloaddition","display_name":"cycloaddition","score":0.7409999966621399},{"id":"https://openalex.org/keywords/regioselectivity","display_name":"regioselectivity","score":0.7609999775886536},{"id":"https://openalex.org/keywords/electron-deficient-olefins","display_name":"electron-deficient olefins","score":0.7919999957084656}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.9847276210784912},{"id":"https://openalex.org/C71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","level":1,"score":0.5636169910430908},{"id":"https://openalex.org/C21951064","wikidata":"https://www.wikidata.org/wiki/Q899212","display_name":"Combinatorial chemistry","level":1,"score":0.34448719024658203},{"id":"https://openalex.org/C147597530","wikidata":"https://www.wikidata.org/wiki/Q369472","display_name":"Computational chemistry","level":1,"score":0.3402736783027649}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1246/bcsj.56.3703","doi":"https://doi.org/10.1246/bcsj.56.3703","is_oa":false,"landing_page_url":"http://www.journal.csj.jp/doi/pdf/10.1246/bcsj.56.3703","pdf_url":null,"source":{"id":"https://openalex.org/S95305481","display_name":"Bulletin of the Chemical Society of Japan","issn_l":"0009-2673","issn":["0009-2673","1348-0634"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","norway-1","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310311648","host_organization_name":"Oxford University Press","host_organization_lineage":["https://openalex.org/P4310311648","https://openalex.org/P4310311647"],"host_organization_lineage_names":["Oxford University Press","University of Oxford"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Bulletin of the Chemical Society of Japan","raw_type":"journal-article"},{"id":"pmh:oai:irdb.nii.ac.jp:00828:0000988838","doi":null,"is_oa":false,"landing_page_url":"https://petit.lib.yamaguchi-u.ac.jp/662","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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Bulletin of the Chemical Society of Japan","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":7,"referenced_works":["https://openalex.org/W1027053770","https://openalex.org/W1993260685","https://openalex.org/W2164207346","https://openalex.org/W2328708804","https://openalex.org/W2334206165","https://openalex.org/W2601768477","https://openalex.org/W4235706145"],"related_works":["https://openalex.org/W7144461792","https://openalex.org/W2090802181","https://openalex.org/W2035729362","https://openalex.org/W2000355756","https://openalex.org/W2952914359","https://openalex.org/W2343666682","https://openalex.org/W2604327266","https://openalex.org/W2949244820","https://openalex.org/W2953277618","https://openalex.org/W2952792211"],"abstract_inverted_index":{"Abstract":[0],"Cyclohepta[4,5]pyrrolo[1,2-a]imidazoles":[1],"(1,3a-diazacyclopent[a]azulenes)":[2],"(2)":[3],"and":[4,12,23,34,44,52],"cyclohept[d]imidazo[1,2-a]imidazoles":[5],"(1,3a,9-triazacyclopent[a]azulenes)":[6],"(6)":[7],"were":[8],"synthesized":[9],"from":[10],"2-aminocyclohepta[b]pyrroles":[11],"2-aminocycloheptimidazole,":[13],"respectively,":[14],"in":[15],"moderate":[16],"to":[17],"good":[18],"yields.":[19],"Reactions":[20,41],"of":[21,42],"2":[22,43],"6":[24,45],"with":[25,31,37,46],"reactive":[26],"acetylenes":[27],"gave":[28,50],"2-azacyclohepta[ef]cycl[3.2.2]azines":[29],"together":[30,36],"bis(1,3a-diazacyclopent[a]azuleno)[1,7]diaza[12]annulenes":[32],"(4)":[33],"2,3-diazacyclohepta[ef]cycl[3.2.2]azines":[35],"bis(1,3a,9-triazacyclopent[a]azuleno)[1,7]diaza[12]annulenes":[38],"(8),":[39],"respectively.":[40,54],"electron":[47],"deficient":[48],"olefins":[49],"4":[51],"8,":[53],"These":[55],"reactions":[56],"proceeded":[57],"regioselectively":[58],"via":[59],"1,10-dipolar":[60],"intermediates.":[61]},"counts_by_year":[{"year":2016,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}
