A microwave-catalyzed rapid, efficient and ecofriendly synthesis of substituted pyrazol-5-ones (Short communication)
2003 ◽
Vol 68
(10)
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pp. 723-727
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Keyword(s):
A series of 1-(3,4-dihydro-3-oxo-2H-1,4-benzoxazine-2-carbonyl)-3-methyl-4-(substituted phenylhydrazono)-2-pyrazolin-5-ones have been synthesized by the reaction of 2H-3,4-dihydro-3-oxo-1,4-benzoxazine-2-carboxylic acid hydrazide with substituted acetoacetic ester derivatives using acetic acid as solvent under microwave irradiation (MWI), as well as by conventional methods. The reaction rate is enhanced tremendously and the yields are improved under MWI as compared to conventional methods.
2016 ◽
Vol 71
(7)
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pp. 803-810
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Keyword(s):
2005 ◽
Vol 42
(1)
◽
pp. 117-120
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2018 ◽
Vol 54
(3)
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pp. 509-511
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Keyword(s):
1994 ◽
Vol 42
(2)
◽
pp. 371-372
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