Asymmetric Synthesis of α-Spiro-γ-lactones and α-Substituted γ-Lactones via Chiral Bifunctional Sulfide-Catalyzed Bromolactonizations
作者:Taiki Mori、Koki Abe、Seiji Shirakawa
DOI:10.1021/acs.joc.2c02283
日期:——
via BINOL-derived chiral bifunctional sulfide-catalyzed bromolactonizations of α-allyl carboxylic acids containing either hetero- or carbocyclic structures. Transformations of the resultant α-spiro-type bromolactonization product were examined to obtain optically active γ-functionalized α-spiro-γ-lactones. The utility of this catalytic system was also demonstrated in the asymmetric synthesis of α,α-diaryl-
通过 BINOL 衍生的手性双功能硫化物催化的含有杂环或碳环结构的 α-烯丙基羧酸的溴内酯化反应,实现了 γ-手性 α-螺-γ-内酯的有效对映选择性合成,γ-手性 α-螺-γ-内酯是药物的重要组成部分。检查所得α-螺型溴内酯化产物的转化以获得光学活性的γ-官能化α-螺-γ-内酯。该催化系统的实用性也在α,α-二芳基和二烷基取代的γ-内酯的不对称合成中得到了证明。