DANHEISER, R. L.;MARTINEZ-DAVILA, C.;SARD, H., TETRAHEDRON, 1981, 37, N 23, 3943-3950
作者:DANHEISER, R. L.、MARTINEZ-DAVILA, C.、SARD, H.
DOI:——
日期:——
Cyclohexenol annulation via the alkoxy-accelerated rearrangement of vinylcyclobutanes
作者:Rick L. Danheiser、Carlos Martinez-Davila、Howard Sard
DOI:10.1016/s0040-4020(01)93268-5
日期:——
efficient method for the synthesis of 3-cyclohexenol derivatives. 2-Vinylcyclobutanones are prepared from α,β-unsaturated carbonyl compounds by the method of Trost and via [2 + 2]-cycloadditions of olefins and vinylketenes. Addition of hydride or alkyllithium reagents then generates 2-vinylcyclobutanol salts which directly rearrange to afford 3-cyclohexenols. The two methods constitute new [3 + 3]- and [4 +