Gold(I)-Catalyzed Angle Strain Controlled Strategy to Furopyran Derivatives from Propargyl Vinyl Ethers: Insight into the Regioselectivity of Cycloisomerization
作者:Shengfei Jin、Chongguo Jiang、Xiaoshi Peng、Chunhui Shan、Shanshan Cui、Yuanyuan Niu、Yang Liu、Yu Lan、Yongxiang Liu、Maosheng Cheng
DOI:10.1021/acs.orglett.5b03641
日期:2016.2.19
synthesis of bicyclic furopyran derivatives has been developed via a gold(I)-catalyzed propargyl-Claisen rearrangement/6-endo-trig cyclization of propargyl vinyl ethers. The introduction of angle strain into the substrates significantly altered the reaction’s regioselectivity. Insight into the regioselectivity of the cycloisomerization was obtained with density functional theory calculations.
通过金(I)催化的炔丙基乙烯基醚的炔丙基-克莱森重排/ 6-内-trig环化,已经开发了用于双环呋喃吡喃衍生物的区域特异性合成的独特策略。将角应变引入基底中显着改变了反应的区域选择性。通过密度泛函理论计算获得了对环异构化区域选择性的洞察力。