{"id":"https://openalex.org/W2176594689","doi":"https://doi.org/10.1016/s0040-4039(03)00108-4","title":"A convenient synthesis of coumarin-3-carboxylic acids via Knoevenagel condensation of Meldrum's acid with ortho-hydroxyaryl aldehydes or ketones","display_name":"A convenient synthesis of coumarin-3-carboxylic acids via Knoevenagel condensation of Meldrum's acid with ortho-hydroxyaryl aldehydes or ketones","publication_year":2003,"publication_date":"2003-02-01","ids":{"openalex":"https://openalex.org/W2176594689","doi":"https://doi.org/10.1016/s0040-4039(03)00108-4","mag":"2176594689"},"language":"en","primary_location":{"id":"doi:10.1016/s0040-4039(03)00108-4","doi":"https://doi.org/10.1016/s0040-4039(03)00108-4","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0040-4039(03)00108-4","pdf_url":null,"source":{"id":"https://openalex.org/S133942674","display_name":"Tetrahedron Letters","issn_l":"0040-4039","issn":["0040-4039","1873-3581"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-d","jufo-1","ki-jl-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 Letters","raw_type":"journal-article"},"volume":null,"type":"article","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/A5047191861","display_name":"Aimin Song","orcid":"https://orcid.org/0000-0002-4845-8585","observed_orcids":["https://orcid.org/0000-0002-4845-8585"]},"institutions":[{"id":"https://openalex.org/I4390039352","display_name":"UC Davis Comprehensive Cancer Center","ror":"https://ror.org/02kcc1z29","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210160856","https://openalex.org/I4390039352"]},{"id":"https://openalex.org/I84218800","display_name":"University of California, Davis","ror":"https://ror.org/05rrcem69","country_code":"US","type":"education","lineage":["https://openalex.org/I84218800"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Aimin Song","raw_affiliation_strings":["Division of Hematology and Oncology, Department of Internal Medicine, UC Davis Cancer Center, University of California, Davis, 4501 X Street, Sacramento, CA 95817, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Hematology and Oncology, Department of Internal Medicine, UC Davis Cancer Center, University of California, Davis, 4501 X Street, Sacramento, CA 95817, USA","institution_ids":["https://openalex.org/I4390039352","https://openalex.org/I84218800"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100625049","display_name":"Xiaobing Wang","orcid":"https://orcid.org/0000-0001-5044-3721","observed_orcids":["https://orcid.org/0000-0001-5044-3721"]},"institutions":[{"id":"https://openalex.org/I4390039352","display_name":"UC Davis Comprehensive Cancer Center","ror":"https://ror.org/02kcc1z29","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210160856","https://openalex.org/I4390039352"]},{"id":"https://openalex.org/I84218800","display_name":"University of California, Davis","ror":"https://ror.org/05rrcem69","country_code":"US","type":"education","lineage":["https://openalex.org/I84218800"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Xiaobing Wang","raw_affiliation_strings":["Division of Hematology and Oncology, Department of Internal Medicine, UC Davis Cancer Center, University of California, Davis, 4501 X Street, Sacramento, CA 95817, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Hematology and Oncology, Department of Internal Medicine, UC Davis Cancer Center, University of California, Davis, 4501 X Street, Sacramento, CA 95817, USA","institution_ids":["https://openalex.org/I4390039352","https://openalex.org/I84218800"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5016566536","display_name":"Kit S. Lam","orcid":"https://orcid.org/0000-0002-3076-6969","observed_orcids":["https://orcid.org/0000-0002-3076-6969"]},"institutions":[{"id":"https://openalex.org/I4390039352","display_name":"UC Davis Comprehensive Cancer Center","ror":"https://ror.org/02kcc1z29","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210160856","https://openalex.org/I4390039352"]},{"id":"https://openalex.org/I84218800","display_name":"University of California, Davis","ror":"https://ror.org/05rrcem69","country_code":"US","type":"education","lineage":["https://openalex.org/I84218800"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Kit S Lam","raw_affiliation_strings":["Division of Hematology and Oncology, Department of Internal Medicine, UC Davis Cancer Center, University of California, Davis, 4501 X Street, Sacramento, CA 95817, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Hematology and Oncology, Department of Internal Medicine, UC Davis Cancer Center, University of California, Davis, 4501 X Street, Sacramento, CA 95817, USA","institution_ids":["https://openalex.org/I4390039352","https://openalex.org/I84218800"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5016566536"],"corresponding_institution_ids":["https://openalex.org/I4390039352","https://openalex.org/I84218800"],"apc_list":{"value":3610,"currency":"USD","value_usd":3610},"apc_paid":null,"fwci":2.929,"has_fulltext":false,"cited_by_count":162,"citation_normalized_percentile":{"value":0.90715737,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":93,"max":100},"biblio":{"volume":"44","issue":"9","first_page":"1755","last_page":"1758"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10274","display_name":"Heterocyclic Compound Synthesis and Bioactivity","score":0.7031000256538391,"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/T10274","display_name":"Heterocyclic Compound Synthesis and Bioactivity","score":0.7031000256538391,"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/T13023","display_name":"Synthesis of Organic Compounds","score":0.09539999812841415,"subfield":{"id":"https://openalex.org/subfields/2736","display_name":"Pharmacology (medical)"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10817","display_name":"Multicomponent Synthesis of Heterocycles","score":0.049400001764297485,"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/coumarin-3-carboxylic-acid","display_name":"coumarin-3-carboxylic acid","score":0.9990000128746033},{"id":"https://openalex.org/keywords/meldrum-s-acid","display_name":"Meldrum's acid","score":0.878000020980835},{"id":"https://openalex.org/keywords/knoevenagel-condensation","display_name":"Knoevenagel condensation","score":0.9940000176429749},{"id":"https://openalex.org/keywords/ketimines","display_name":"ketimines","score":0.8809999823570251},{"id":"https://openalex.org/keywords/heterocycle-synthesis","display_name":"heterocyclic synthesis","score":0.5049999952316284}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.9702854752540588},{"id":"https://openalex.org/C168395250","wikidata":"https://www.wikidata.org/wiki/Q898972","display_name":"Knoevenagel condensation","level":3,"score":0.9206722974777222},{"id":"https://openalex.org/C2781377247","wikidata":"https://www.wikidata.org/wiki/Q421283","display_name":"Meldrum's acid","level":2,"score":0.9050008058547974},{"id":"https://openalex.org/C2781338262","wikidata":"https://www.wikidata.org/wiki/Q111812","display_name":"Coumarin","level":2,"score":0.8522107601165771},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.6632956266403198},{"id":"https://openalex.org/C2779074116","wikidata":"https://www.wikidata.org/wiki/Q134856","display_name":"Carboxylic acid","level":2,"score":0.6040728092193604},{"id":"https://openalex.org/C2780161600","wikidata":"https://www.wikidata.org/wiki/Q153","display_name":"Ethanol","level":2,"score":0.5339063405990601},{"id":"https://openalex.org/C2776382133","wikidata":"https://www.wikidata.org/wiki/Q4087","display_name":"Ammonia","level":2,"score":0.5330297946929932},{"id":"https://openalex.org/C200093464","wikidata":"https://www.wikidata.org/wiki/Q166583","display_name":"Condensation","level":2,"score":0.46225234866142273},{"id":"https://openalex.org/C161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","level":2,"score":0.1829138994216919},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0040-4039(03)00108-4","doi":"https://doi.org/10.1016/s0040-4039(03)00108-4","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0040-4039(03)00108-4","pdf_url":null,"source":{"id":"https://openalex.org/S133942674","display_name":"Tetrahedron Letters","issn_l":"0040-4039","issn":["0040-4039","1873-3581"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-d","jufo-1","ki-jl-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 Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320332161","display_name":"National Institutes of Health","ror":"https://ror.org/01cwqze88"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W244965830","https://openalex.org/W1504021706","https://openalex.org/W1529976208","https://openalex.org/W1965377540","https://openalex.org/W1968542108","https://openalex.org/W1984803221","https://openalex.org/W2011853117","https://openalex.org/W2020726477","https://openalex.org/W2058819996","https://openalex.org/W2061109631","https://openalex.org/W2067073828","https://openalex.org/W2076916757","https://openalex.org/W2087210865","https://openalex.org/W2165140967","https://openalex.org/W2321007843","https://openalex.org/W2328894070","https://openalex.org/W2949654306","https://openalex.org/W4205928195"],"related_works":["https://openalex.org/W2949987545","https://openalex.org/W2061109631","https://openalex.org/W1965377540","https://openalex.org/W2562132098","https://openalex.org/W2053983236","https://openalex.org/W2355793804","https://openalex.org/W1968440379","https://openalex.org/W2951742176","https://openalex.org/W2364939156","https://openalex.org/W2950890815"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":8},{"year":2018,"cited_by_count":11},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":8},{"year":2015,"cited_by_count":18},{"year":2014,"cited_by_count":11},{"year":2013,"cited_by_count":11},{"year":2012,"cited_by_count":7}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}