Preparation and reactions of 4-oxaspiro[2.3]hexanes
作者:Henri Bekolo、Amy R. Howell
DOI:10.1039/b010095l
日期:——
2-Methyleneoxetanes were converted in excellent yields to 4-oxaspiro[2.3]hexanes under modified Simmons–Smith conditions. Treatment of the oxaspirohexanes with BF3·Et2O provided cyclopentanones, cyclobutanones or 4-methylenetetrahydrofurans, depending on the substituents.