ChemInform Abstract: A Novel Approach for Synthesis of 3‐Amino‐5‐aryl‐2,5‐dihydropyridazines Using Onium Salt as Soluble Support.

Abstract

A Novel Approach for Synthesis of 3-Amino-5-aryl-2,5-dihydropyridazines Using Onium Salt as Soluble Support. -The conversion of the onium salt (III) into the title compounds involves Knoevenagel condensation with aromatic aldehydes, Michael addition with phenylhydrazone (III) and cleavage from the support using triethylamine in ethanol. -(GAO, M.; LU*, C. F.; YANG, G. C.; CHEN, Z. X.; Chin. Chem. Lett. 22 (2011) 7, 823-826, http://dx.