[1,2]- or [2,3]-Rearrangement of Onium Ylides of Allyl and Benzyl Ethers and Sulfides via in Situ-Generated Iodonium Ylides
作者:Graham K. Murphy、F. G. West
DOI:10.1021/ol061772o
日期:2006.9
Iodoniumylides, generated in situ with bisacetoxyiodobenzene, are converted to allyl- or benzyl-substituted oxonium or sulfonium ylides via rhodium- or copper-catalyzed carbene transfer. Except for the S-benzyl example, the resulting ylides undergo rearrangement to the corresponding 2-substituted heterocycles. This demonstrates the first use of iodoniumylides as diazoketone surrogates for the generation