Intramolecular reactions of acyclic n-acyliminium ions III silicon assisted cyclocondensation of glyoxylic esters to proline and pipecolic acid derivatives
作者:Hendrik H Mooiweer、Henk Hiemstra、Hendrikus P Fortgens、W.Nico Speckamp
DOI:10.1016/s0040-4039(00)95494-7
日期:1987.1
Cyclizations of acyclic N-acyliminium ions, generated from the adducts of formaldehyde, n-butyl glyoxylate or methyl glyoxylate with amines containing an allyl or propargyl silane as terminator, lead to 3-ethenyl and 3-ethenylidene substituted pyrrolidines and piperidines, some of which are structurally related to proline and pipecolic acid.
由甲醛,乙醛酸正丁酯或乙醛酸甲酯与含有烯丙基或炔丙基硅烷作为终止剂的胺的加合物生成的无环N-酰亚胺离子的环化反应会生成3-乙烯基和3-乙炔基取代的吡咯烷和哌啶在结构上与脯氨酸和胡椒酸有关。