作者:Xiao-Niu Cao、Xiao-Min Wan、Fa-Liu Yang、Ke Li、Xin-Qi Hao、Tian Shao、Xinju Zhu、Mao-Ping Song
DOI:10.1021/acs.joc.8b00013
日期:2018.4.6
C–C bonds using alcohols as the alkylating agents, generating water as the only byproduct. A broad range of substrates, including (hetero)aryl- or alkyl-ketones and alcohols, were well tolerated under the optimized conditions. Notably, α-substituted methylene ketones were also investigated, which afforded α-branched steric hindrance products. A potential application of α-alkylation of methylene acetone
制备并充分表征了一系列由对称NNN配体支撑的新型钌(II)配合物。这些复合物在转移加氢方面表现出良好的性能,使用醇作为烷基化剂形成新的C–C键,产生水作为唯一的副产物。在优化的条件下,对多种底物(包括(杂)芳基或烷基酮和醇)具有良好的耐受性。值得注意地,还研究了α-取代的亚甲基酮,其提供了α-支化的空间位阻产物。证明了将亚甲基丙酮的α-烷基化用于合成多奈哌齐的潜在应用,这以83%的收率提供了所需的产物。最后,该催化体系可用于顺序添加两种不同醇的单锅双烷基化方法。