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-aminoacidesters 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
Reagent concentration effects in the REM resin solid phase synthesis of tertiary amines
作者:J Richard Morphy、Zoran Rankovic、Mark York
DOI:10.1016/s0040-4020(03)00176-5
日期:2003.3
The use of reagent concentration has resulted in increased rates for all stages of the REM resin synthesis of tertiary amines. These increases in rate translate into faster reaction times, higher yields and lower reagent consumption. Of the methods examined, the most successful was the use of perfluorous solvents, either alone or with a small amount of organic co-solvent. (C) 2003 Elsevier Science Ltd. All rights reserved.