作者:Ao Song、Shiyuan Liu、Mingchun Wang、Yao Lu、Rongzhou Wang、Ling-Bao Xing
DOI:10.1016/j.jcat.2022.01.021
日期:2022.3
A general synthesis of β-methylated secondary alcohols via tandem α-methylation/transfer hydrogenation from non-methylated ketones with methanol by a Cp*Ir complex [Cp*Ir(2,2′-bpyO)(OH)]Na with a bipyridine-based functional ligand was reported. Remarkably, β-methylated secondary alcohols can be obtained under milder reaction conditions using methanol as the methylating agent (C1 source) by employing
通过 Cp*Ir 配合物 [Cp*Ir(2,2'-bpyO)(OH)]Na 与联吡啶,通过非甲基化酮与甲醇的串联α -甲基化/转移氢化合成β -甲基化仲醇报道了基于 的功能性配体。值得注意的是,通过采用该催化体系,使用甲醇作为甲基化剂(C1 源),可以在较温和的反应条件下获得β-甲基化仲醇。具有不同官能团的各种结构多样的酮被甲基化和氢化,具有良好的耐受性,产率从公平到高。该方法为使用甲醇制备β-甲基化仲醇提供了一种容易获得且高效的途径。