One-pot β-alkylation of secondary alcohols with primary alcohols catalyzed by ruthenacycles
作者:Xu Chang、Low Wei Chuan、Li Yongxin、Sumod A. Pullarkat
DOI:10.1016/j.tetlet.2012.01.025
日期:2012.3
best combination of reactivity and product selectivity among the four. An expanded scope of substrates was also studied with the inclusion of unsaturated primary alcohols. The reactivity trend observed gave insights into the role of hydrogen bonding in the catalytic mechanism involving transfer hydrogenation between the substrates and the transition metal catalyst.
描述了钌醇循环催化的仲醇与伯醇的一锅式β-烷基化。四个C-N螯合物的调查ruthenacycles经由苯基甲胺的环金属化反应,合成Ñ -methylphenylmethanamine,Ñ,Ñ -dimethylphenylmethanamine,和萘-1-基甲胺与[(η 6 -C 6 H ^ 6)的RuCl 2 ] 2进行了。发现所有四种配合物均与基于苯甲胺的钌环烷有活性,显示出这四种反应性和产物选择性的最佳组合。还研究了包括不饱和伯醇在内的底物的扩大范围。观察到的反应性趋势使人们深入了解了氢键在涉及底物和过渡金属催化剂之间转移加氢的催化机理中的作用。