Two-flask preparation of .alpha.-lithio cyclic ethers from .gamma.- and .delta.-lactones. Reductive lithiation as a route, via radical intermediates, to axial 2-lithiotetrahydropyrans and their equilibration to the equatorial isomers
作者:Theodore Cohen、Ming Teh Lin
DOI:10.1021/ja00316a060
日期:1984.2
Application a la synthese du rose oxyde et de perhydro furannes, -pyrannes et -chromannes substitues en 2
应用 a la synthese du rose oxyde et de perhydrofuranes, -pyrannes et -chromannes substitues en 2
Carbenoid anion behavior of dilithio derivatives of thioacetal alcohols. Stereochemistry and mechanism of ring closures by oxyanion-facilitated carbon-hydrogen bond insertion