One-pot Hofmann elimination–transesterification/amidation reactions on REM resin using perfluorous solvents
作者:J.Richard Morphy、Zoran Rankovic、Mark York
DOI:10.1016/s0040-4039(02)01388-6
日期:2002.9
2,2,2-trifluoroethanol esters into substrates for the REM resin synthesis of 3° amines allows a one-pot Hofmann elimination/transesterification protocol to be performed. In this way α-amino acid esters and amides were synthesised by adding alcohols or 1° amines to the Hofmann elimination mixture. The excess of nucleophile required to drive the transesterification or amidation to completion was found
将2,2,2-三氟乙醇酯掺入用于3°胺的REM树脂合成的基质中,可以执行一锅霍夫曼消除/酯交换方案。通过向霍夫曼消除混合物中添加醇或1°胺,可以合成α-氨基酸酯和酰胺。当使用全氟溶剂加速反应时,驱动酯交换反应或酰胺化反应完成所需的亲核试剂过量要低得多(FAST效应)。