ChemInform Abstract: Catalyst‐Free Synthesis of Spiropyrazolines from Chalcones and Cyclic Ketone N‐Tosylhydrazones.

Abstract

Catalyst-Free Synthesis of Spiropyrazolines from Chalcones and Cyclic Ketone N-Tosylhydrazones. -The title compounds are efficiently obtained with high selectivity and functional-group tolerance from readily available and stable starting materials. -(WU, Q.-X.; LI*, H.-J.; WANG, H.-S.; ZHANG, Z.-G.; WANG, C.-C.; WU, Y.-C.; Synlett 26 (2015) 2, 243-249, http://dx.