Intramolecular diels-alder reactions of silyl acetal trienes. The effect of stereoselectivity of allylic substitution
作者:Donald Craig、John C. Reader
DOI:10.1016/0040-4039(92)88103-c
日期:1992.7
The syntheses and thermal intramolecular Diels-Alder reactions of silyl acetal trienes possessing methyl groups at the allylicpositions of the diene or dienophile are described. A model is proposed to account for the observed selectivities. The structures of the cycloadducts are unambigously assigned by X-ray crytallographic analysis of derivatives.