Synthesis of γ-lactones and unsaturated bis γ-lactones via Cu–Fe-mediated reductive cyclization of di- and tri-α-halogenated carboxylic esters
作者:Iris Somech、Youval Shvo
DOI:10.1016/s0022-328x(00)00056-5
日期:2000.4
α-Trichloro esters also generated the γ-substituted γ-butyrolactone, albeit in lower yields and selectivity. The latter reaction gave rise to the formation of interesting by-products, namely new unsaturated bis-lactones.