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 methylmigration results exclusively when they are on different rings.