Amol V. Gadakh, C. Pandit, S. S. Rindhe
Jul 20, 2010
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Journal
International Journal of Chemistry
Abstract
An efficient synthesis of 3-trifluoromethyl-1-(3,4-difluorophenyl)-1H-pyrazol-5(4H)-one (3) and their Knoevenagel condensation reaction with 1,4-diphenyl -1H-pyrazole-3-carbaldehydes 4, 4-oxo-4H-chromene-3-carbaldehydes 6 and 2-chloroquinoline-3-carbaldehydes 8 have been described by using conventional and non-conventional techniques. Comparison of conventional and non-conventional techniques like Microwave , Ultrasonic assisted reactions showed that, the later procedure require shorter reaction time, good yield and was applicable for larger set of substrates emphasizing the importance of eco-friendly conditions.