A green and efficient protocol for the synthesis of dihydropyrano[2,3-c]pyrazole derivatives via a one-pot, four component reaction by grinding method
An efficient grinding protocol for the synthesis of dihydropyrano[2,3-c]pyrazole derivatives from acetylene ester, hydrazine hydrate, aryl aldehydes and malononitrile under solvent free conditions has been achieved with excellent yields. The structures of the synthesized compounds were deduced by sp...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Elsevier
2015-11-01
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Series: | Journal of Advanced Research |
Subjects: | |
Online Access: | http://www.sciencedirect.com/science/article/pii/S2090123214001441 |