1443523-22-5Relevant articles and documents
Copper(I)-catalyzed [3+2] cycloaddition/ring-opening rearrangement/[4+2] cycloaddition/aromatization cascade: An unprecedented chemo- and stereoselective three component coupling of sulfonyl azide, alkyne and N-arylidenepyridin-2- amine to pyrido[1,2-a]pyrimidin-4-imine
Namitharan, Kayambu,Pitchumani, Kasi
, p. 93 - 98 (2013/03/13)
A novel synthetic protocol for the one-pot chemo- and stereoselective construction of diversely functionalized pyrido[1,2-a]pyrimidin-4-imines via copper(I)-catalyzed [3+2] cycloaddition/ring-opening rearrangement/[4+2] cycloaddition/aromatization cascade of sulfonyl azides, alkynes and N-arylidenepyridin-2-amines under mild reaction conditions is reported. In addition, the catalytic activity of copper(I)-modified zeolite, a recyclable, heterogeneous catalyst is also investigated, which gives improved yield compared to its homogeneous equivalents. Copyright