Greener approach towards the facile synthesis of 1,4-dihydropyrano[2,3-c]pyrazol-5-yl cyanide derivatives at room temperature
Ravi S. Balaskar, Sandip N. Gavade, Madhav S. Mane, Bapurao B. Shingate, Murlidhar S. Shingare, Dhananjay V. Mane
Chinese Chemical Letters . 2010, (10): 1175 -1179 .  DOI: 10.1016/j.cclet.2010.06.013