Borane catalysed cyclopropenation of arylacetylenes. Issue 55 (16th June 2021)

• Record Type: Journal Article
• Authors: Stefkova, Katarina; Heard, Matthew J.; Dasgupta, Ayan; Melen, Rebecca L.
• Is Part Of: Chemical communications. Volume 57:Issue 55(2021)
• Page Start: 6736
• Page End: 6739
• Publication Date: 2021-06-16
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d1cc01856f
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Triarylborane catalysed cyclopropenation of a arylacetylenes using donor–acceptor diazoesters. Abstract : Triarylboranes have gained substantial attention as catalysts for C–C bond forming reactions due to their remarkable catalytic activities. Herein, we report B(C6 F5 )3 catalysed cyclopropenation of a wide variety of arylacetylenes using donor–acceptor diazoesters. A mild reaction protocol has been developed for the synthesis of functionalised cyclopropenes (33 examples) in good to excellent yields.