{"id":"https://openalex.org/W1985709191","doi":"https://doi.org/10.1016/s0040-4020(01)80098-3","title":"Indoloquinolizidine iminium species formed under the modified Polonovski reaction conditions","display_name":"Indoloquinolizidine iminium species formed under the modified Polonovski reaction conditions","publication_year":1989,"publication_date":"1989-01-01","ids":{"openalex":"https://openalex.org/W1985709191","doi":"https://doi.org/10.1016/s0040-4020(01)80098-3","mag":"1985709191"},"language":"en","primary_location":{"id":"doi:10.1016/s0040-4020(01)80098-3","doi":"https://doi.org/10.1016/s0040-4020(01)80098-3","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0040-4020(01)80098-3","pdf_url":null,"source":{"id":"https://openalex.org/S205754296","display_name":"Tetrahedron","issn_l":"0040-4020","issn":["0040-4020","1464-5416"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Tetrahedron","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/A5090704313","display_name":"Tarja Tamminen","orcid":"https://orcid.org/0000-0002-4597-0364","observed_orcids":["https://orcid.org/0000-0002-4597-0364"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Tarja Tamminen","raw_affiliation_strings":["Laboratory for Organic and Bioorganic Chemistry, Technical University of Helsinki, SF-02150, Espoo, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory for Organic and Bioorganic Chemistry, Technical University of Helsinki, SF-02150, Espoo, Finland","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111587736","display_name":"Reija Jokela","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Reija Jokela","raw_affiliation_strings":["Laboratory for Organic and Bioorganic Chemistry, Technical University of Helsinki, SF-02150, Espoo, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory for Organic and Bioorganic Chemistry, Technical University of Helsinki, SF-02150, Espoo, Finland","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044786426","display_name":"Birgit Tirkkonen","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Birgit Tirkkonen","raw_affiliation_strings":["Laboratory for Organic and Bioorganic Chemistry, Technical University of Helsinki, SF-02150, Espoo, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory for Organic and Bioorganic Chemistry, Technical University of Helsinki, SF-02150, Espoo, Finland","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5077444404","display_name":"Mauri Lounasmaa","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Mauri Lounasmaa","raw_affiliation_strings":["Laboratory for Organic and Bioorganic Chemistry, Technical University of Helsinki, SF-02150, Espoo, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory for Organic and Bioorganic Chemistry, Technical University of Helsinki, SF-02150, Espoo, Finland","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":3680,"currency":"USD","value_usd":3680},"apc_paid":null,"fwci":3.3437,"has_fulltext":false,"cited_by_count":29,"citation_normalized_percentile":{"value":0.91275268,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":87,"max":97},"biblio":{"volume":"45","issue":"9","first_page":"2683","last_page":"2692"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13649","display_name":"Advanced Synthetic Organic Chemistry","score":0.673799991607666,"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/T13649","display_name":"Advanced Synthetic Organic Chemistry","score":0.673799991607666,"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/T13188","display_name":"Synthesis and bioactivity of alkaloids","score":0.10080000013113022,"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/T12973","display_name":"Synthesis of Indole Derivatives","score":0.08190000057220459,"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/iminium-ions","display_name":"iminium ions","score":0.7870000004768372},{"id":"https://openalex.org/keywords/polonovski-reaction","display_name":"Polonovski reaction","score":0.9620000123977661},{"id":"https://openalex.org/keywords/regioselectivity","display_name":"regioselectivity","score":0.9649999737739563},{"id":"https://openalex.org/keywords/heterocycle-synthesis","display_name":"heterocyclic synthesis","score":0.40299999713897705}],"concepts":[{"id":"https://openalex.org/C2778567177","wikidata":"https://www.wikidata.org/wiki/Q2409792","display_name":"Iminium","level":3,"score":0.9978472590446472},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.9511019587516785},{"id":"https://openalex.org/C59759590","wikidata":"https://www.wikidata.org/wiki/Q2275927","display_name":"Regioselectivity","level":3,"score":0.8241251707077026},{"id":"https://openalex.org/C2778455166","wikidata":"https://www.wikidata.org/wiki/Q55076544","display_name":"Cyanide","level":2,"score":0.5845192670822144},{"id":"https://openalex.org/C2777924906","wikidata":"https://www.wikidata.org/wiki/Q34168","display_name":"Trapping","level":2,"score":0.5228031873703003},{"id":"https://openalex.org/C145148216","wikidata":"https://www.wikidata.org/wiki/Q36496","display_name":"Ion","level":2,"score":0.4716308116912842},{"id":"https://openalex.org/C2992596695","wikidata":"https://www.wikidata.org/wiki/Q55076544","display_name":"Cyanide ion","level":3,"score":0.43397843837738037},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.27326351404190063},{"id":"https://openalex.org/C161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","level":2,"score":0.13110420107841492},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0040-4020(01)80098-3","doi":"https://doi.org/10.1016/s0040-4020(01)80098-3","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0040-4020(01)80098-3","pdf_url":null,"source":{"id":"https://openalex.org/S205754296","display_name":"Tetrahedron","issn_l":"0040-4020","issn":["0040-4020","1464-5416"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Tetrahedron","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":18,"referenced_works":["https://openalex.org/W1500675147","https://openalex.org/W1517802390","https://openalex.org/W2012244075","https://openalex.org/W2021444291","https://openalex.org/W2031406932","https://openalex.org/W2046022303","https://openalex.org/W2054843229","https://openalex.org/W2063509826","https://openalex.org/W2078019746","https://openalex.org/W2147453085","https://openalex.org/W2316258224","https://openalex.org/W2317136191","https://openalex.org/W2317655082","https://openalex.org/W2971320223","https://openalex.org/W3004692537","https://openalex.org/W4234034354","https://openalex.org/W4242669841","https://openalex.org/W4245509607"],"related_works":["https://openalex.org/W2950072256","https://openalex.org/W2056539356","https://openalex.org/W2093649589","https://openalex.org/W1991749387","https://openalex.org/W1973521649","https://openalex.org/W4234034354","https://openalex.org/W2070664647","https://openalex.org/W2951467163","https://openalex.org/W7057289891","https://openalex.org/W1969470322"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2014,"cited_by_count":3},{"year":2012,"cited_by_count":1}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2016-06-24T00:00:00"}
