Bromine Radical Catalysis by Energy Transfer Photosensitization
作者:Dian-Feng Chen、Cameron H. Chrisman、Garret M. Miyake
DOI:10.1021/acscatal.0c00281
日期:2020.2.21
user-friendly bromine radical catalysis system that enables efficient [3 + 2] cycloaddition of diversely substituted vinyl- and ethynylcyclopropanes with a broad range of alkenes, including drug-like molecules and pharmaceuticals. Key to the success is the use of photosensitizing triplet-state β-fragmentation of a judiciously selected precatalyst, cinnamyl bromide, to generate bromine radicals in a
Nickel-Catalyzed Borylative Ring-Opening Reaction of Vinylcyclopropanes with Bis(pinacolato)diboron Yielding Allylic Boronates
作者:Yuto Sumida、Hideki Yorimitsu、Koichiro Oshima
DOI:10.1021/ol801982d
日期:2008.10.16
Vinylcyclopropanes bearing one or two electron-withdrawing groups on the cyclopropane ring undergo nickel-catalyzed borylative ring opening with bis(pinacolato)diboron to yield allylic boronates. The reaction proceeded with high E selectivity.
Vardapetyan, A. A.; Khachatryan, D. S.; Morlyan, N. M., Journal of Organic Chemistry USSR (English Translation), 1988, vol. 24, # 7, p. 1237 - 1242
作者:Vardapetyan, A. A.、Khachatryan, D. S.、Morlyan, N. M.