A β-lactone-based route to cyclopentanes via intramolecular allylsilane additions. An unexpected friedel-crafts alkylation
作者:Cunxiang Zhao、Daniel Romo
DOI:10.1016/s0040-4039(97)01529-3
日期:1997.9
Lewis acid promoted intramolecular additions of allylsilanes to β-lactones proceed smoothly to give variously substituted cyclopentanes. A proposed transition state assembly for this reaction guided our efforts to improve the stereoselectivity. A novel Friedel-Crafts alkylation of β-lactones is also described.