Unified approach towards medium ring allylic ethers. Stereoselective synthesis of 2,10-dialkylated (E)-oxacyclodec-3-enes by palladium catalyzed cyclization
作者:H.M.R. Hoffmann、J. Pohlmann
DOI:10.1016/s0040-4039(98)01506-8
日期:1998.9
Δ3-Unsaturated 10-membered ring ethers (5,6,7,8,9,10-hexahydro-2H-oxecins) 11a and 11b have been prepared by intramolecular Pd-catalyzed allylic alkylation. The ethers are formed with E-configurated olefinic double bond and with the chiral centre at carbon C2 intact.
Δ 3不饱和10元环醚(-5,6,7,8,9,10-六氢-2- ħ -oxecins)11A和11B是由分子内Pd催化的烯丙基烷基化制备。形成具有E-构型的烯烃双键并且具有在碳C 2上的手性中心完整的醚。