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Title
Disodium Phosphate: A Highly Efficient Catalyst for One-Pot Synthesis of Substituted 3,4-Dihydropyrano[3,2-C]Chromenes.
Authors
Shitole, Balasaheb V.; Shitole, Nana V.; Kakde, Gopal K.
Abstract
Disodium phosphate catalyzed one-pot synthesis of 3,4-dihydropyrano[3,2-c]chromenes, from aldehydes, active methylene compounds malononitrile and 4-hydroxycoumarin in ethanol:water (1:1) under reflux temperature. The attractive features of this process are inexpensive, efficient, as well as user friendly.
Publication
Orbital: The Electronic Journal of Chemistry, 2017, Vol 9, Issue 3, p130