A palladium catalyst under visible light irradiation activates cyclobutanone oxime ester through single electron transfer to induce radical ring opening to generate hybrid cyanoalkyl Pd(I) radical species. Hybrid cyanoalkyl Pd(I) radical species can undergo either β-H elimination to deliver (E)-4-arylbut-3-enenitrile or undergo radical addition with silyl enol ether and enamide to generate δ-cyano
钯催化剂在可见光照射下通过单电子转移活化
环丁酮肟酯,以诱导自由基开环,从而生成杂合
氰基烷基Pd(I)自由基物种。杂合
氰基烷基Pd(I)自由基物种可以经过β-H消除反应以释放出(E)-4-芳基丁-3-烯腈,也可以与甲
硅烷基烯醇醚和烯酰胺进行自由基加成反应生成δ-
氰基酮。由两个
膦配体组成的双
配体系统对于高反应性至关重要。