{"title":"6-氟环己-1,2,4-三烯中间体的生成[通过四氢- diels - alder反应]和反应性。","authors":"Paul V Kevorkian,Thomas R Hoye","doi":"10.1021/acs.orglett.5c03636","DOIUrl":null,"url":null,"abstract":"We report the engagement of the 2,6-difluorophenyl substituent in tetradehydro-Diels-Alder (TDDA) reactions. The use of fluorine was guided by DFT computations. Acceleration of TDDA cycloisomerization by an anhydride linker in the substrates was also key. Trapping of the strained cyclic allene intermediate by nucleophilic carbons in external heterocycles, an enol, and alkenes led to unusual reactivities (e.g., one rationalized by rearrangement to a carbene intermediate).","PeriodicalId":54,"journal":{"name":"Organic Letters","volume":"17 1","pages":""},"PeriodicalIF":5.0000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Generation [via Tetradehydro-Diels-Alder Reactions] and Reactivity of 6-Fluorocyclohexa-1,2,4-triene Intermediates.\",\"authors\":\"Paul V Kevorkian,Thomas R Hoye\",\"doi\":\"10.1021/acs.orglett.5c03636\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We report the engagement of the 2,6-difluorophenyl substituent in tetradehydro-Diels-Alder (TDDA) reactions. The use of fluorine was guided by DFT computations. Acceleration of TDDA cycloisomerization by an anhydride linker in the substrates was also key. Trapping of the strained cyclic allene intermediate by nucleophilic carbons in external heterocycles, an enol, and alkenes led to unusual reactivities (e.g., one rationalized by rearrangement to a carbene intermediate).\",\"PeriodicalId\":54,\"journal\":{\"name\":\"Organic Letters\",\"volume\":\"17 1\",\"pages\":\"\"},\"PeriodicalIF\":5.0000,\"publicationDate\":\"2025-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Organic Letters\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.orglett.5c03636\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, ORGANIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Organic Letters","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acs.orglett.5c03636","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
Generation [via Tetradehydro-Diels-Alder Reactions] and Reactivity of 6-Fluorocyclohexa-1,2,4-triene Intermediates.
We report the engagement of the 2,6-difluorophenyl substituent in tetradehydro-Diels-Alder (TDDA) reactions. The use of fluorine was guided by DFT computations. Acceleration of TDDA cycloisomerization by an anhydride linker in the substrates was also key. Trapping of the strained cyclic allene intermediate by nucleophilic carbons in external heterocycles, an enol, and alkenes led to unusual reactivities (e.g., one rationalized by rearrangement to a carbene intermediate).
期刊介绍:
Organic Letters invites original reports of fundamental research in all branches of the theory and practice of organic, physical organic, organometallic,medicinal, and bioorganic chemistry. Organic Letters provides rapid disclosure of the key elements of significant studies that are of interest to a large portion of the organic community. In selecting manuscripts for publication, the Editors place emphasis on the originality, quality and wide interest of the work. Authors should provide enough background information to place the new disclosure in context and to justify the rapid publication format. Back-to-back Letters will be considered. Full details should be reserved for an Article, which should appear in due course.