Silicon-guided rearrangement of 10-methyl-4,5-epoxydecalins. Methyl versus methylene migration
作者:Gonzalo Blay、Luz Cardona、Ana M. Collado、Begoña Garcı́a、José R. Pedro
DOI:10.1016/j.tetlet.2003.09.023
日期:2003.10
The Lewis acid-promoted rearrangement of two 10-methyl-4,5-epoxydecalins bearing a trimethylsilyl (TMS) group on C-1 or C-9 has been studied. Migration of the C-9 methylene group to C-5 is the major reaction pathway when the TMS and the oxirane groups are on the same ring while methyl migration results exclusively when they are on different rings.
研究了路易斯酸促进的两个在C-1或C-9上带有三甲基甲硅烷基(TMS)基团的10-甲基-4,5-环氧十氢化萘的重排。当TMS和环氧乙烷基团在同一环上时,C-9亚甲基向C-5的迁移是主要的反应途径,而当甲基丙烯酸甲酯和环氧乙烷基团在不同的环上时,则仅发生甲基迁移。