{"id":"https://openalex.org/W2147350053","doi":"https://doi.org/10.1002/jccs.200300041","title":"Microwave Promoted and Improved Thermal Synthesis of Spiro[Indole\u2010Pyranobenzopyrans] and Spiro[Indole\u2010Pyranoimidazoles]","display_name":"Microwave Promoted and Improved Thermal Synthesis of Spiro[Indole\u2010Pyranobenzopyrans] and Spiro[Indole\u2010Pyranoimidazoles]","publication_year":2003,"publication_date":"2003-04-01","ids":{"openalex":"https://openalex.org/W2147350053","doi":"https://doi.org/10.1002/jccs.200300041","mag":"2147350053"},"language":"en","primary_location":{"id":"doi:10.1002/jccs.200300041","doi":"https://doi.org/10.1002/jccs.200300041","is_oa":false,"landing_page_url":"https://doi.org/10.1002/jccs.200300041","pdf_url":null,"source":{"id":"https://openalex.org/S5649782","display_name":"Journal of the Chinese Chemical Society","issn_l":"0009-4536","issn":["0009-4536","2192-6549"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-d","norway-1","poland-40","russia-white-list-2","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":"Journal of the Chinese Chemical Society","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/A5023159754","display_name":"Anshu Dandia","orcid":"https://orcid.org/0000-0002-8856-7778","observed_orcids":["https://orcid.org/0000-0002-8856-7778","https://orcid.org/0000-0002-9958-213X"]},"institutions":[{"id":"https://openalex.org/I99552915","display_name":"University of Rajasthan","ror":"https://ror.org/05arfhc56","country_code":"IN","type":"education","lineage":["https://openalex.org/I99552915"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Anshu Dandia","raw_affiliation_strings":["Department of Chemistry, University of Rajasthan, Jaipur-302 004, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, University of Rajasthan, Jaipur-302 004, India","institution_ids":["https://openalex.org/I99552915"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5049761968","display_name":"Ruby Singh","orcid":"https://orcid.org/0000-0002-4591-4100","observed_orcids":["https://orcid.org/0000-0002-4591-4100"]},"institutions":[{"id":"https://openalex.org/I99552915","display_name":"University of Rajasthan","ror":"https://ror.org/05arfhc56","country_code":"IN","type":"education","lineage":["https://openalex.org/I99552915"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Ruby Singh","raw_affiliation_strings":["Department of Chemistry, University of Rajasthan, Jaipur-302 004, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, University of Rajasthan, Jaipur-302 004, India","institution_ids":["https://openalex.org/I99552915"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043614831","display_name":"Harshita Sachdeva","orcid":"https://orcid.org/0000-0002-1838-1863","observed_orcids":["https://orcid.org/0000-0002-1838-1863"]},"institutions":[{"id":"https://openalex.org/I99552915","display_name":"University of Rajasthan","ror":"https://ror.org/05arfhc56","country_code":"IN","type":"education","lineage":["https://openalex.org/I99552915"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Harshita Sachdeva","raw_affiliation_strings":["Department of Chemistry, University of Rajasthan, Jaipur-302 004, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, University of Rajasthan, Jaipur-302 004, India","institution_ids":["https://openalex.org/I99552915"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101055632","display_name":"Rajive Gupta","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I145846420","display_name":"University of Jammu","ror":"https://ror.org/02retg991","country_code":"IN","type":"education","lineage":["https://openalex.org/I145846420"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Rajive Gupta","raw_affiliation_strings":["Department of Chemistry, University of Jammu, Jammu-180 006, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, University of Jammu, Jammu-180 006, India","institution_ids":["https://openalex.org/I145846420"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5011214262","display_name":"Satya Paul","orcid":"https://orcid.org/0000-0002-9859-3371","observed_orcids":["https://orcid.org/0000-0002-9859-3371"]},"institutions":[{"id":"https://openalex.org/I145846420","display_name":"University of Jammu","ror":"https://ror.org/02retg991","country_code":"IN","type":"education","lineage":["https://openalex.org/I145846420"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Satya Paul","raw_affiliation_strings":["Department of Chemistry, University of Jammu, Jammu-180 006, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, University of Jammu, Jammu-180 006, India","institution_ids":["https://openalex.org/I145846420"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":3470,"currency":"USD","value_usd":3470},"apc_paid":null,"fwci":0.671,"has_fulltext":false,"cited_by_count":15,"citation_normalized_percentile":{"value":0.60722828,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"50","issue":"2","first_page":"273","last_page":"278"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10817","display_name":"Multicomponent Synthesis of Heterocycles","score":0.7627000212669373,"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/T10817","display_name":"Multicomponent Synthesis of Heterocycles","score":0.7627000212669373,"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/T12270","display_name":"Microwave-Assisted Synthesis and Applications","score":0.10970000177621841,"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":0.06769999861717224,"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/microwave-assisted-synthesis","display_name":"microwave-assisted synthesis","score":0.9520000219345093},{"id":"https://openalex.org/keywords/thermal-synthesis","display_name":"thermal synthesis","score":0.8920000195503235},{"id":"https://openalex.org/keywords/michael-condensation","display_name":"Michael condensation","score":0.9010000228881836},{"id":"https://openalex.org/keywords/catalyst-free-synthesis","display_name":"catalyst-free synthesis","score":0.7670000195503235},{"id":"https://openalex.org/keywords/solid-supported-synthesis","display_name":"solid-supported synthesis","score":0.5260000228881836},{"id":"https://openalex.org/keywords/solvent-free-conditions","display_name":"solvent-free conditions","score":0.781000018119812},{"id":"https://openalex.org/keywords/knoevenagel-condensation","display_name":"Knoevenagel condensation","score":0.9670000076293945},{"id":"https://openalex.org/keywords/indole-2-3-dione","display_name":"indole-2,3-dione","score":0.9610000252723694},{"id":"https://openalex.org/keywords/malononitrile","display_name":"malononitrile","score":0.9919999837875366}],"concepts":[{"id":"https://openalex.org/C192527728","wikidata":"https://www.wikidata.org/wiki/Q1465700","display_name":"Indole test","level":2,"score":0.9371983408927917},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.9241684079170227},{"id":"https://openalex.org/C2780513484","wikidata":"https://www.wikidata.org/wiki/Q419572","display_name":"Malononitrile","level":3,"score":0.8896844387054443},{"id":"https://openalex.org/C168395250","wikidata":"https://www.wikidata.org/wiki/Q898972","display_name":"Knoevenagel condensation","level":3,"score":0.8387470245361328},{"id":"https://openalex.org/C2984548686","wikidata":"https://www.wikidata.org/wiki/Q905377","display_name":"Microwave irradiation","level":3,"score":0.6260451078414917},{"id":"https://openalex.org/C161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","level":2,"score":0.6194018125534058},{"id":"https://openalex.org/C200093464","wikidata":"https://www.wikidata.org/wiki/Q166583","display_name":"Condensation","level":2,"score":0.5802688598632812},{"id":"https://openalex.org/C207245611","wikidata":"https://www.wikidata.org/wiki/Q910058","display_name":"Condensation reaction","level":3,"score":0.5298742055892944},{"id":"https://openalex.org/C2780471494","wikidata":"https://www.wikidata.org/wiki/Q146505","display_name":"Solvent","level":2,"score":0.4679728150367737},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.40032345056533813},{"id":"https://openalex.org/C188027245","wikidata":"https://www.wikidata.org/wiki/Q750446","display_name":"Polymer chemistry","level":1,"score":0.32408854365348816},{"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:10.1002/jccs.200300041","doi":"https://doi.org/10.1002/jccs.200300041","is_oa":false,"landing_page_url":"https://doi.org/10.1002/jccs.200300041","pdf_url":null,"source":{"id":"https://openalex.org/S5649782","display_name":"Journal of the Chinese Chemical Society","issn_l":"0009-4536","issn":["0009-4536","2192-6549"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-d","norway-1","poland-40","russia-white-list-2","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":"Journal of the Chinese Chemical Society","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/W1489914588","https://openalex.org/W1548877719","https://openalex.org/W1974528399","https://openalex.org/W1989646883","https://openalex.org/W1995030593","https://openalex.org/W2011388578","https://openalex.org/W2020860177","https://openalex.org/W2064617646","https://openalex.org/W2069701804","https://openalex.org/W2070607705","https://openalex.org/W2105535972","https://openalex.org/W2154055664","https://openalex.org/W2320807700","https://openalex.org/W2406698760","https://openalex.org/W2505014125","https://openalex.org/W2950020593","https://openalex.org/W2952750527","https://openalex.org/W4247419782"],"related_works":["https://openalex.org/W1989646883","https://openalex.org/W2043300394","https://openalex.org/W2951643774","https://openalex.org/W4241752906","https://openalex.org/W2148255387","https://openalex.org/W2065165388","https://openalex.org/W2768947955","https://openalex.org/W2253216442","https://openalex.org/W2951446068","https://openalex.org/W2163069938"],"abstract_inverted_index":{"Abstract":[0],"Spiro[indole\u2010pyranoimidazoles]":[1],"(5)":[2],"and":[3,14,27,41,72],"spiro[indole\u2010pyranobenzopyrans]":[4],"(6)":[5],"are":[6],"readily":[7],"synthesized":[8,62],"in":[9,12,56,63,74,84],"one":[10],"step":[11],"86\u201392":[13],"91\u201397%":[15],"yields":[16],"by":[17,65],"the":[18,66,75,92,101],"Michael":[19],"condensation":[20,68],"of":[21,69,77,94],"3\u2010dicyanomethylene\u20102H\u2010indol\u20102\u2010ones":[22],"(2)":[23],"with":[24],"1\u2010phenyl\u20102\u2010thiohydantoin":[25],"(3)":[26],"4\u2010hydroxy\u20102H\u20101\u2010benzopyran\u20102\u2010one":[28],"(4),":[29],"respectively,":[30],"without":[31],"using":[32,44],"any":[33,78],"catalyst":[34],"under":[35],"different":[36],"reaction":[37],"conditions":[38],"(conventional":[39],"heating":[40],"microwave":[42],"irradiation":[43],"(a)":[45],"polar":[46],"solvents":[47],"(b)":[48],"neutral":[49],"alumina/silica":[50],"gel":[51],"as":[52],"inorganic":[53],"solid":[54],"support":[55],"solvent":[57],"free":[58],"conditions).":[59],"2":[60],"was":[61,82],"situ":[64],"Knoevenagel":[67],"indole\u20102,3\u2010dione":[70],"(1)":[71],"malononitrile":[73],"absence":[76],"catalyst.":[79],"100%":[80],"conversion":[81],"observed":[83],"most":[85],"cases":[86],"on":[87],"TLC":[88],"which":[89],"also":[90],"showed":[91],"formation":[93],"a":[95],"single":[96],"product.":[97],"The":[98],"comparison":[99],"between":[100],"various":[102],"methods":[103],"is":[104],"established.":[105]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2016-06-24T00:00:00"}
