Photocatalytic Radical Aroylation of Unactivated Alkenes: Pathway to β-Functionalized 1,4-, 1,6-, and 1,7-Diketones
作者:Satavisha Sarkar、Arghya Banerjee、Wang Yao、Eric V. Patterson、Ming-Yu Ngai
DOI:10.1021/acscatal.9b03570
日期:2019.11.1
the distal-group migration, and synthesis of carbocycles and heterocycles from the diketones are also described. Mechanistic studies suggest a reaction pathway involving a photocatalytic radical aroylation of unactivated alkenes followed by a distal-group migration, oxidation, and deprotonation to afford the desired diketones.
我们报告了在室温下从芳酰氯和未活化烯烃合成β-官能化不对称1,4-,1,6-和1,7-二酮的光催化策略的发展。温和的反应条件不仅可以耐受各种官能团和结构部分,而且还可以迁移各种远端基团,包括(杂)芳烃,腈,醛,肟衍生物和烯烃。还描述了手性转移的效率,控制远端基团迁移的因素以及由二酮合成碳环和杂环的过程。机理研究表明,反应途径涉及未活化烯烃的光催化自由基芳基化,然后进行远端基团迁移,氧化和去质子化,从而得到所需的二酮。