期刊
CHEMICAL COMMUNICATIONS
卷 59, 期 35, 页码 5213-5216出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d3cc00822c
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In this study, gem-difluoroallylic bicyclo[1.1.1]pentanes were synthesized through a cascade multicomponent reaction using visible light-induced defluorinative gem-difluoroallylation of [1.1.1]propellane. The methodology exhibited mild reaction conditions, wide reactant scope, and suitable functional group tolerance, making it significant in modern drug design.
Bicyclo[1.1.1]pentanes (BCPs) represent an important compound class often used as linear spacer units to enhance pharmacokinetic profiles in modern drug design. Herein, we report a cascade multicomponent reaction to synthesize gem-difluoroallylic bicyclo[1.1.1]pentanes via visible light-induced defluorinative gem-difluoroallylation of [1.1.1]propellane. In this methodology, sulfonyl radicals generated from sodium arylsulfinates added to [1.1.1]propellane to form BCP radicals were then trapped by a-trifluoromethyl alkenes to form gem-difluoroallylic bicyclo[1.1.1]pentanes. Importantly, our methodology is characterized by mild reaction conditions, wide reactant scope, and suitable functional group tolerance.
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