Fused bicyclic oxonium ylides, generated with catalytic Rh 2(OAc)4 from cyclic ethers bearing pendant diazo ketones, undergo a [1,2]- or [2,3]-shift to give O-bridged seven- or eight-membered carbocycles, in several cases with a high degree of stereoselectivity.
|Original language||English (US)|
|Number of pages||3|
|Journal||Journal of the Chemical Society, Perkin Transactions 1|
|State||Published - 1993|
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