First Practical Synthesis of Formamidine Ureas and Derivatives
作者:Amy S. Ripka、David D. Díaz、K. Barry Sharpless、M. G. Finn
DOI:10.1021/ol034287r
日期:2003.5.1
Isonitriles and ureas undergo a condensation reaction in the presence of acid chlorides to give formamidineureas, for which no general synthetic routes currently exist. A mechanism is proposed in which the key intermediate is an electrophilic adduct of isonitrile and acid chloride. The process is tolerant of moderate variability in the nature of the components, and access to formamidineureas of varying