Iterative Approach to Polycyclic Ethers Based on Stereoselective Oxonium Ylide [2,3]-Shifts
作者:Fredrik P. Marmsäter、F. G. West
DOI:10.1021/ja015872v
日期:2001.5.1
Cyclic oxonium ylides: building blocks for iterative synthesis of polycyclic ethers
作者:Fredrik P Marmsäter、John A Vanecko、F.G West
DOI:10.1016/s0040-4020(02)00051-0
日期:2002.3
diazoketones bearing remote benzyl or allyl ethers was subjected to a variety of conditions for catalytic diazodecomposition and cyclic oxonium ylide formation as a possible method for polycyclic ethersynthesis. Allyl ethers 19, 25 and 29 underwent efficient conversion to the corresponding bis(pyran) and tris(pyran) products in the presence of Cu(tfacac)2, while benzyl ether 15 was converted to bicyclic products