Visible light-induced palladium-catalyzed ring opening β-H elimination and addition of cyclobutanone oxime esters
作者:Wei-Long Xing、Rui Shang、Guang-Zu Wang、Yao Fu
DOI:10.1039/c9cc08077e
日期:——
A palladium catalyst under visible light irradiation activates cyclobutanone oxime ester through single electron transfer to induce radical ringopening 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
A sustainable, cyanide-free synthesis of alkyl nitriles via the aerobic oxidative deconstruction of unstrained cycloalkanones with ammonium salts has been developed. Using inexpensive and stable ammonium salts as the nitrogen source, a variety of alkyl nitriles containing a distal carbonyl group were obtained in good yields under visible-light-promoted iron catalysis. This protocol is characterized
通过用铵盐对无张力环烷酮进行有氧氧化解构,开发了一种可持续、无氰化物的烷基腈合成方法。使用廉价且稳定的铵盐作为氮源,在可见光促进的铁催化下以良好的收率获得了多种含有远端羰基的烷基腈。该方案的特点是条件温和、材料丰富且环境友好、原子和步骤经济性高、废物产生最少。主要机理研究表明1 O 2很可能参与该反应。
Correction to “TEMPO-catalyzed Aerobic Oxygenation and Nitrogenation of Olefins via C═C Double-Bond Cleavage”