Carbon-Carbon Bond Formation by the Use of Chloroiodomethane as a C<sub>1</sub>Unit. III. A Convenient Synthesis of the Mannich Base from Enol Silyl Ether by a Combination of Chloroiodomethane and<i>N</i>,<i>N</i>,<i>N</i>′,<i>N</i>′-Tetramethylmethanediamine
作者:Sotaro Miyano、Hiroshi Hokari、Harukichi Hashimoto
DOI:10.1246/bcsj.55.534
日期:1982.2
a combination of chloroiodomethane (CH2ClI) and N,N,N′,N′-tetramethylmethanediamine (TMMD) in DMSO as the solvent at ambient temperature. The mechanism of the transformation is discussed on the basis of product analysis and 1H NMR spectral studies. The reagent system CH2ClI/TMMD also provides a convenient route to the Eschenmoser’s salt (Me2\overset+N=CH2,\overset−I).
羰基化合物的曼尼希二甲氨基甲基化可方便地通过烯醇三甲基甲硅烷基醚通过氯碘甲烷 (CH2ClI) 和 N,N,N',N'-四甲基甲二胺 (TMMD) 在 DMSO 作为溶剂在环境温度下进行。在产物分析和 1 H NMR 光谱研究的基础上讨论了转化机制。试剂系统 CH2ClI/TMMD 还提供了一个方便的路线到 Eschenmoser 盐 (Me2\overset+N=CH2,\overset-I)。