One-Pot Synthesis of Pyrrolo[2,1-<i>a</i>]isoquinoline-1-carboxamide Derivatives via a Four-Component Reaction
作者:Abdolali Alizadeh、Nasrin Zohreh
DOI:10.1055/s-2008-1032033
日期:2008.2
An effective route to functionalized 1,2,3,10b-tetrahydropyrrolo[2,1-a]isoquinoline-1-carboxamide derivatives is described. This involves reaction of N-alkyl-3-oxobutanamides, which result from the addition of amines to diketene, and dibenzoylacetylene in the presence of isoquinoline. The reactive 1:1 intermediate obtained from the addition of isoquinoline to dibenzoyl-acetylene is trapped by OH acids such as N-alkyl-3-oxobutanamides to produce the pyrrolo[2,1-a]isoquinoline-1-carboxamide derivatives.