1352128-65-4Relevant academic research and scientific papers
Novel and efficient one-pot synthesis of spiro[indoline-3,4'-pyrano [2,3-c]pyrazole]derivatives catalysed by L-proline in aqueous medium
Yu, Jiangxia,Zhou, Yongbing,Shen, Tianhua,Mao, Wengang,Chen, Kang,Song, Qingbao
, p. 365 - 368 (2013)
An efficient mild one-pot synthesis of spiro[indoline-3,4'-pyrano[2,3-c] pyrazole derivatives by a four-component reaction of hydrazine, a β-keto ester, isatin, and malononitrile catalysed by L-proline in water is reported.
Rapid and efficient ultrasound-assisted method for the combinatorial synthesis of spiro[indoline-3,4′-pyrano[2,3-c]pyrazole] derivatives
Zou, Yi,Hu, Yu,Liu, Hai,Shi, Daqing
experimental part, p. 38 - 43 (2012/02/05)
An efficient one-pot synthesis of spiro[indoline-3,4′-pyrano[2,3-c] pyrazole] derivatives by four-component reaction of hydrazine, β-keto ester, isatin, and malononitrile or ethyl cyanoacetate catalyzed by piperidine under ultrasound irradiation is descri
