additions to dual‐activated alkynes have been developed (see scheme; E=electrophile, R1=alkyl, R2=alkyl or aryl). The reaction with an alkyl radical afforded the β‐addition product, whereas the reaction with an organocuprate gave the α‐adduct with high regio‐ and stereoselectivities. These reactions were applied to domino and one‐pot reactions, providing tetrasubstituted and functionalized alkenes. Computational
切换反应:试剂依赖性区域选择性添加到双-活化的炔烃已经被开发(见方案; E =电体,R 1 =烷基,R 2 =烷基或芳基)。与烷基的反应生成β加成产物,而与有机铜的反应生成具有高区域选择性和立体选择性的α加合物。这些反应适用于多米诺骨牌和一锅法反应,提供四取代和官能化的烯烃。计算研究已用于合理化选择性。