Direct Synthesis of Dialkyl Ketones from Aliphatic Aldehydes through Radical <i>N</i>-Heterocyclic Carbene Catalysis
作者:Yuki Kakeno、Mayu Kusakabe、Kazunori Nagao、Hirohisa Ohmiya
DOI:10.1021/acscatal.0c02849
日期:2020.8.7
N-neopentyl group and seven-membered backbone structure was achieved through the use of aliphatic aldehydes as acyl donors in the decarboxylative radical coupling with aliphatic carboxylic acid derived-redox active esters. The NHC catalyst also enabled the vicinal alkylacylation of vinyl arenes using aliphatic aldehydes and redox-active esters through a radical relay mechanism. These reactions provided the synthetic
通过使用脂族醛作为酰基供体与脂肪族羧酸衍生的氧化还原活性酯偶合,实现了具有N-新戊基和七元主链结构的噻唑鎓型N-杂环卡宾(NHC)催化剂的设计。NHC催化剂还可以通过自由基中继机制使用脂肪族醛和氧化还原活性酯实现乙烯基芳烃的邻位烷基酰化。这些反应为空间受阻的二烷基酮提供了合成途径。