Green synthesis of spiro[indoline-3,4′-pyrano[2,3-c]pyrazoles] using Fe3O4@l-arginine as a robust and reusable catalyst
Abstract The synthesized Fe3O4@l-arginine showed strong catalytic performance in the one-pot synthesis of spiropyranopyrazoles via the reactions of hydrazines, β-keto esters, isatins, and malononitrile or ethyl cyanoacetate under solvent-free conditions. The biologically active heterocyclic compound...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2019-10-01
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Series: | BMC Chemistry |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s13065-019-0636-1 |