Described herein is the GaCl3-catalyzed lactonization of γ-keto carboxylic acids in the presence of PhSiH3 leading to the direct preparation of γ-lactone derivatives. This reducing system showed a relatively wide functional group tolerance.
本文描述了在PhSiH 3存在下GaCl 3催化的γ-
酮羧酸的内酯化,从而直接制备γ-内酯衍
生物。该还原体系显示出相对宽泛的官能团耐受性。