<i>N</i>-Acylazinium Salts: A New Source of Iminium Ions for Ugi-Type Processes
作者:José Luis Díaz、Miriam Miguel、Rodolfo Lavilla
DOI:10.1021/jo049823n
日期:2004.5.1
A multicomponent reaction involving the interaction of azines (quinolines, isoquinolines, and phenanthridine) with activating agents (chloroformates, acid halides, and sulfonyl halides), isocyanides, and water is described. The products of this process, α-carbamoylated-1,2-dihydroazines, are the result of the addition of the isocyanide partner to the N-acylazinium salt formed in situ. This represents