S Zhou, J Jia, JR Gao, L Han, Y Li, W Sheng - Dyes and Pigments, 2010 - Elsevier
A novel, piperidene-catalysed, one-pot synthesis of 3-(2′-benzothiazolyl) coumarins was
undertaken, starting from salicylaldehydes, ethyl cyanoacetate and o-aminobenzenethiols in …