The cyanation of acetals and orthoesters by using a stericallycongestedα-cyanoamine as a cyanatingreagent was investigated. The α-cyanoamine effectively facilitated cyanation in the presence of trichlorosilyl triflate to produce a variety of cyanated adducts in excellent yields. Analysis of the reaction mixture by 1H NMR spectroscopy revealed that trichlorosilyl triflate produced an oxocarbenium
研究了使用空间拥挤的 α-氰胺作为氰化试剂对缩醛和原酸酯进行氰化。α-氰基胺在三氟甲磺酸三氯甲硅烷酯存在下有效促进氰化,以优异的产率生产各种氰化加合物。通过 1 H NMR 光谱分析反应混合物表明,三氟甲磺酸三氯甲硅烷基酯产生作为中间体的氧代碳鎓阳离子物质。
2,2-Dialkoxyalkanenitriles
作者:John G. Erickson
DOI:10.1021/ja01147a145
日期:1951.3
A facile route to α-imino acetals and the corresponding monoacetal derivatives of α-diketones with complete regiochemical control.
作者:James H. Babler、Charles J. Marcuccilli
DOI:10.1016/s0040-4039(00)96589-4
日期:1987.1
Dialkoxyalkanenitriles. III. Hydrogenation to α-Amino Acetals