{"id":"https://openalex.org/W7131982923","doi":null,"title":"Synthesis and Chemical Transformation of Coumarin Derivatives","display_name":"Synthesis and Chemical Transformation of Coumarin Derivatives","publication_year":2020,"publication_date":"2020-04-05","ids":{"openalex":"https://openalex.org/W7131982923"},"language":"bg","primary_location":{"id":"pmh:oai:bpos.bg:12107","doi":null,"is_oa":false,"landing_page_url":"http://hdl.handle.net/20.500.12641/12107","pdf_url":null,"source":{"id":"https://openalex.org/S7407055231","display_name":"Bulgarian Portal for Open Science","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"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":"doctoral thesis"},"parent_works":[],"lineage":["https://openalex.org/W7131982923"],"child_works_count":0,"type":"dissertation","is_traditional":true,"indexed_in":[],"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/A5127060426","display_name":"\u0410\u043d\u0430 \u041a\u043e\u043b\u0435\u0432\u0430","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"\u041a\u043e\u043b\u0435\u0432\u0430, \u0410\u043d\u0430","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5002579842","display_name":"Ana I. Koleva","orcid":"https://orcid.org/0000-0001-7702-0315","observed_orcids":["https://orcid.org/0000-0001-7702-0315"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Koleva, Ana","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13023","display_name":"Synthesis of Organic Compounds","score":0.21439999341964722,"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/T13023","display_name":"Synthesis of Organic Compounds","score":0.21439999341964722,"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/T12228","display_name":"Coordination Chemistry and Organometallics","score":0.1858000010251999,"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/T13239","display_name":"Phosphorus compounds and reactions","score":0.13429999351501465,"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/coumarins","display_name":"coumarins","score":0.9490000009536743},{"id":"https://openalex.org/keywords/grignard-reagents","display_name":"Grignard reagents","score":0.8769999742507935},{"id":"https://openalex.org/keywords/conjugate-addition","display_name":"conjugate addition","score":0.9440000057220459},{"id":"https://openalex.org/keywords/sonication","display_name":"sonication","score":0.8489999771118164},{"id":"https://openalex.org/keywords/organophosphorus-compounds","display_name":"organophosphorus compounds","score":0.48500001430511475},{"id":"https://openalex.org/keywords/reaction-reproducibility","display_name":"reaction reproducibility","score":0.47200000286102295}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.6694999933242798},{"id":"https://openalex.org/C2781338262","wikidata":"https://www.wikidata.org/wiki/Q111812","display_name":"Coumarin","level":2,"score":0.490200012922287},{"id":"https://openalex.org/C114373084","wikidata":"https://www.wikidata.org/wiki/Q273499","display_name":"Chemical synthesis","level":3,"score":0.38670000433921814},{"id":"https://openalex.org/C21951064","wikidata":"https://www.wikidata.org/wiki/Q899212","display_name":"Combinatorial chemistry","level":1,"score":0.3853999972343445},{"id":"https://openalex.org/C2780759640","wikidata":"https://www.wikidata.org/wiki/Q36534","display_name":"Chemical transformation","level":2,"score":0.36579999327659607},{"id":"https://openalex.org/C134121241","wikidata":"https://www.wikidata.org/wiki/Q899301","display_name":"Yield (engineering)","level":2,"score":0.3424000144004822},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.3379000127315521},{"id":"https://openalex.org/C71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","level":1,"score":0.2770000100135803},{"id":"https://openalex.org/C175528265","wikidata":"https://www.wikidata.org/wiki/Q500256","display_name":"Chemical structure","level":2,"score":0.26330000162124634},{"id":"https://openalex.org/C177801218","wikidata":"https://www.wikidata.org/wiki/Q36534","display_name":"Chemical reaction","level":2,"score":0.24619999527931213}],"mesh":[],"locations_count":1,"locations":[{"id":"pmh:oai:bpos.bg:12107","doi":null,"is_oa":false,"landing_page_url":"http://hdl.handle.net/20.500.12641/12107","pdf_url":null,"source":{"id":"https://openalex.org/S7407055231","display_name":"Bulgarian Portal for Open Science","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"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":"doctoral thesis"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W7132177164","https://openalex.org/W2805820218","https://openalex.org/W2949886439","https://openalex.org/W1012042109","https://openalex.org/W4231284238","https://openalex.org/W4293074759","https://openalex.org/W2088291712","https://openalex.org/W2312813645","https://openalex.org/W2037345943","https://openalex.org/W2098544109"],"abstract_inverted_index":{"\u041e\u0441\u043d\u043e\u0432\u043d\u0430":[0],"\u0446\u0435\u043b":[1],"\u043d\u0430":[2,8,11,14,30,33,72,76,78,91,107,112,122,124,131,136,152,157,162,169,188,196,198],"\u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0438\u044f":[3],"\u0434\u0438\u0441\u0435\u0440\u0442\u0430\u0446\u0438\u043e\u043d\u0435\u043d":[4],"\u0442\u0440\u0443\u0434":[5],"\u0431\u0435":[6],"\u0438\u0437\u0441\u043b\u0435\u0434\u0432\u0430\u043d\u0435":[7],"\u0445\u0438\u043c\u0438\u0447\u043d\u043e\u0442\u043e":[9],"\u043f\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0435":[10],"\u0434\u0438\u0435\u0442\u0438\u043b\u043e\u0432\u0438\u044f":[12],"\u0435\u0441\u0442\u0435\u0440":[13],"\u043a\u0443\u043c\u0430\u0440\u0438\u043d-3-\u0444\u043e\u0441\u0444\u043e\u043d\u043e\u0432\u0430\u0442\u0430":[15],"\u043a\u0438\u0441\u0435\u043b\u0438\u043d\u0430":[16],"1\u0430":[17,34,125],"\u0441\u043f\u0440\u044f\u043c\u043e":[18],"\u043e\u0440\u0433\u0430\u043d\u043e\u043c\u0435\u0442\u0430\u043b\u043d\u0438":[19,36],"\u0440\u0435\u0430\u0433\u0435\u043d\u0442\u0438":[20,52],"\u0432":[21,115,129,165,171,182],"\u0440\u0435\u0430\u043a\u0446\u0438\u0438,":[22],"\u043f\u0440\u043e\u0432\u0435\u0436\u0434\u0430\u043d\u0438":[23],"\u043f\u0440\u0438":[24,38,41,53,177],"\u0440\u0430\u0437\u043b\u0438\u0447\u043d\u0438":[25],"\u0440\u0435\u0430\u043a\u0446\u0438\u043e\u043d\u043d\u0438":[26],"\u0443\u0441\u043b\u043e\u0432\u0438\u044f.":[27],"\u0412":[28],"\u0440\u0435\u0437\u0443\u043b\u0442\u0430\u0442":[29],"\u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0442\u0435":[31],"\u0438\u0437\u0441\u043b\u0435\u0434\u0432\u0430\u043d\u0438\u044f":[32],"\u0441":[35,43,50,64,82,126,155,179],"\u0441\u044a\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u044f":[37],"\u043d\u0430\u0433\u0440\u044f\u0432\u0430\u043d\u0435":[39,54],"\u0438":[40,140],"\u043e\u0431\u043b\u044a\u0447\u0432\u0430\u043d\u0435":[42,81],"\u0443\u043b\u0442\u0440\u0430\u0437\u0432\u0443\u043a":[44,83,137],"\u0431\u0435\u0448\u0435":[45],"\u0443\u0441\u0442\u0430\u043d\u043e\u0432\u0435\u043d\u043e,":[46],"\u0447\u0435:":[47],"\uf097":[48,119,144,185],"\u0420\u0435\u0430\u043a\u0446\u0438\u044f\u0442\u0430":[49,168],"\u043e\u0440\u0433\u0430\u043d\u043e\u043c\u0430\u0433\u043d\u0435\u0437\u0438\u0435\u0432\u0438":[51],"\u043f\u0440\u043e\u0442\u0438\u0447\u0430":[55],"\u043b\u0435\u0441\u043d\u043e":[56],"\u043a\u0430\u0442\u043e":[57,89,110,160],"1,4-\u043f\u0440\u0438\u0441\u044a\u0435\u0434\u0438\u043d\u044f\u0432\u0430\u043d\u0435":[58],"\u2013":[59,96],"\u0438\u0437\u043e\u043b\u0438\u0440\u0430\u043d\u0438":[60],"\u0441\u0430":[61,114,164],"\u0441\u044a\u043e\u0442\u0432\u0435\u0442\u043d\u0438\u0442\u0435":[62],"\u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0438":[63],"\u0434\u043e\u0431\u0438\u0432\u0438":[65],"\u0432\u0430\u0440\u0438\u0440\u0430\u0449\u0438":[66],"\u043e\u0442":[67,117],"38":[68],"\u0434\u043e":[69],"78%.":[70],"\u041d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u044a\u043a":[71],"\u043c\u0435\u0442\u043e\u0434\u0430":[73],"\u0435":[74,94,104,138,146,174,191],"\u043b\u0438\u043f\u0441\u0430\u0442\u0430":[75],"\u0432\u044a\u0437\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u043c\u043e\u0441\u0442":[77],"\u0440\u0435\u0437\u0443\u043b\u0442\u0430\u0442\u0438\u0442\u0435.":[79],"\u041f\u0440\u0438":[80,120],"\u0441\u044a\u0449\u0438\u0442\u0435":[84],"\u0440\u0435\u0430\u043a\u0446\u0438\u0438":[85],"\u043f\u0440\u043e\u0442\u0438\u0447\u0430\u0442":[86],"\u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u043d\u043e":[87],"\u043f\u043e-\u0433\u043b\u0430\u0434\u043a\u043e,":[88],"\u0432\u044a\u0437\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u0442\u0430":[90],"\u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0442\u0435":[92,189],"\u0440\u0435\u0437\u0443\u043b\u0442\u0430\u0442\u0438":[93,190],"\u043f\u043e\u0432\u0438\u0448\u0435\u043d\u0430":[95],"\u0441\u0440\u0435\u0434\u043d\u043e":[97],"\u0441\u0442\u0430\u0442\u0438\u0441\u0442\u0438\u0447\u0435\u0441\u043a\u043e":[98],"\u043e\u0442\u043a\u043b\u043e\u043d\u0435\u043d\u0438\u0435":[99],"\u0437\u0430":[100,150,194],"\u0434\u043e\u0431\u0438\u0432\u0438\u0442\u0435":[101,111,161],"0.8-1.5%.":[102],"\u041d\u0430\u0431\u043b\u044e\u0434\u0430\u0432\u0430\u043d\u043e":[103],"\u043f\u044a\u043b\u043d\u043e":[105],"\u043f\u0440\u0435\u0432\u0440\u044a\u0449\u0430\u043d\u0435":[106],"\u0438\u0437\u0445\u043e\u0434\u043d\u043e\u0442\u043e":[108],"\u0432\u0435\u0449\u0435\u0441\u0442\u0432\u043e,":[109],"\u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0438\u0442\u0435":[113,163],"\u0438\u043d\u0442\u0435\u0440\u0432\u0430\u043b\u0430":[116,166],"53-94%.":[118],"\u043f\u0440\u043e\u0432\u0435\u0436\u0434\u0430\u043d\u0435":[121],"\u0440\u0435\u0430\u043a\u0446\u0438\u044f":[123],"\u0445\u043b\u043e\u0440\u043e\u0446\u0435\u0442\u0435\u043d":[127],"\u0430\u043d\u0445\u0438\u0434\u0440\u0438\u0434":[128],"\u043f\u0440\u0438\u0441\u044a\u0441\u0442\u0432\u0438\u0435":[130],"\u043c\u0435\u0442\u0430\u043b\u0435\u043d":[132],"\u0446\u0438\u043d\u043a":[133],"\u043f\u043e\u0434":[134],"\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435":[135],"\u0438\u0437\u043e\u043b\u0438\u0440\u0430\u043d":[139],"\u043e\u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0437\u0438\u0440\u0430\u043d":[141],"\u0434\u0438\u043c\u0435\u0440\u044a\u0442":[142],"\u0442\u0435\u0442\u0440\u0430\u0435\u0442\u0438\u043b(2,2\u2018-\u0434\u0438\u043e\u043a\u0441\u043e-4,4\u2018-\u0431\u0438\u0445\u0440\u043e\u043c\u0430\u043d-3,3\u2018-\u0434\u0438\u0438\u043b)\u0431\u0438\u0441\u0444\u043e\u0441\u0444\u043e\u043d\u0430\u0442.":[143],"\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0435\u043d":[145],"\u043d\u043e\u0432":[147],"\u0443\u0434\u043e\u0431\u0435\u043d":[148],"\u043c\u0435\u0442\u043e\u0434":[149],"\u0434\u0438\u043c\u0435\u0440\u0438\u0437\u0430\u0446\u0438\u044f":[151],"3-\u0437\u0430\u043c\u0435\u0441\u0442\u0435\u043d\u0438":[153],"\u043a\u0443\u043c\u0430\u0440\u0438\u043d\u0438":[154,178],"\u0438\u0437\u043f\u043e\u043b\u0437\u0432\u0430\u043d\u0435\u0442\u043e":[156],"\u0443\u043b\u0442\u0440\u0430\u0437\u0432\u0443\u043a\u043e\u0432\u043e":[158],"\u043b\u044a\u0447\u0435\u043d\u0438\u0435":[159],"45-92%.":[167],"\u0445\u043e\u043c\u043e\u0434\u0438\u043c\u0435\u0440\u0438\u0437\u0430\u0446\u0438\u044f":[170],"\u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0442\u0435":[172],"\u0443\u0441\u043b\u043e\u0432\u0438\u044f":[173],"\u043f\u0440\u0438\u043b\u043e\u0436\u0438\u043c\u0430":[175],"\u0441\u0430\u043c\u043e":[176],"\u0435\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u0430\u043a\u0446\u0435\u043f\u0442\u043e\u0440\u043d\u0430":[180],"\u0433\u0440\u0443\u043f\u0430":[181],"3-\u0442\u0430":[183],"\u043f\u043e\u0437\u0438\u0446\u0438\u044f.":[184],"\u041d\u0430":[186],"\u0431\u0430\u0437\u0430\u0442\u0430":[187],"\u043d\u0430\u043f\u0440\u0430\u0432\u0435\u043d\u043e":[192],"\u043f\u0440\u0435\u0434\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u0435":[193],"\u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430":[195],"\u0440\u0435\u0430\u043a\u0446\u0438\u044f\u0442\u0430":[197],"\u0434\u0438\u043c\u0435\u0440\u0438\u0437\u0430\u0446\u0438\u044f.":[199]},"counts_by_year":[],"updated_date":"2026-11-14T11:04:58.165337","created_date":"2026-02-28T00:00:00"}