An expedient four-component domino protocol for the regioselective synthesis of highly functionalized pyranopyrazoles and chromenopyrazoles via nitroketene-N,S-acetal chemistry under solvent-free condition

An expedient four-component domino protocol for the regioselective synthesis of highly functionalized pyranopyrazoles and chromenopyrazoles via nitroketene-N,S-acetal chemistry under solvent-free condition

Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 55, Issue 12, 19 March 2014, Pages 2010-2014

Kamalraja Jayabal, Thirumalai Perumal Paramasivan,