描述了N-烷基-或N-芳基(全氟烷基)硫代羧酰胺与烷基锂试剂的反应。将三氟硫代乙酰胺转化为相应的锂盐。带有通过CHF 2基团终止的多氟长链的化合物和含有N-烷基取代基且质子与氮相邻的化合物进一步通过涉及HF消除,然后进行乙烯基氟取代和/或S N '型的多步反应序列进一步反应氟取代。这些转变导致不饱和的N-单取代的多氟代硫代酰胺。
An efficient sequence for the preparation of small secondary amine hydrochloride salts for focused library generation without need for distillation or chromatographic purification
作者:Gene M. Dubowchik、Jodi A. Michne、Dmitry Zuev
DOI:10.1016/j.bmcl.2004.04.014
日期:2004.6
Collections of small secondary amines for compound library generation can be efficiently prepared by amide reduction using BH(3)-THF or Red-Al followed by brief methanolysis, trapping with di-tert-butyl dicarbonate, and deprotection with 4M HCl in dioxane. The sequence requires no chromatography or distillation and provides multi-gram quantities of pure HCl salts in a short time.
KAWA HAJIMU; ISHIKAWA NOBUO, J. FLUOR. CHEM., 1980, 16, NO 4, 365-372