Synthesis of 2-amino-7-hydroxy-4H-chromene derivatives under ultrasound irradiation: A rapid procedure without catalyst
A highly efficient three-component synthesis of 2-amino-7-hydroxy-4H-chromenes by one-step condensation of aldehydes with malononitrile and resorcinol without catalyst in water under ultrasonic irradiation is described. This implies a convenient route avoiding the usage of hazardous organic solvents...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Elsevier
2017-05-01
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Series: | Arabian Journal of Chemistry |
Subjects: | |
Online Access: | http://www.sciencedirect.com/science/article/pii/S1878535213004085 |