Oxidative Cross-Coupling of α-Amino Ketones with Alcohols Enabled by I<sub>2</sub>-Catalyzed C–H Hydroxylation
作者:Yingwei Wang、Mingrong Yang、Chichou Lao、Hanxuan Wang、Zhihong Jiang
DOI:10.1021/acs.joc.3c01469
日期:2023.10.20
oxidative cross-coupling of α-amino ketones with a wide range of alcohols is described. Using a combination of air and dimethyl sulfoxide (DMSO) as oxidants, the protocol allows an efficient synthesis of α-carbonyl N,O-acetals with high functional group tolerance and enables the late-stage introduction of α-amino ketones into biorelevant alcohols. Moreover, the present method can be used in the coupling of
描述了α-氨基酮与多种醇的I 2催化氧化交叉偶联。该方案使用空气和二甲基亚砜(DMSO)的组合作为氧化剂,可以有效合成具有高官能团耐受性的α-羰基N,O-缩醛,并能够在后期将α-氨基酮引入生物相关醇中。此外,该方法可用于α-氨基酮与其他种类的亲核试剂的偶联,这对于α-氨基酮的官能化具有很大的通用性。初步的机理研究表明,α-氨基酮的 C-H 羟基化已被认为是随后脱水偶联的关键步骤。