Improved synthesis of diethyl 2,6-dimethyl-4-aryl-4H-pyran-3,5-dicarboxylate under ultrasound irradiation
نویسندگان
چکیده
منابع مشابه
Optimization of the selective monohydrolysis of diethyl 4-aryl-4H-pyran-3,5-dicarboxylates.
A simple, efficient and eco-friendly procedure for the selective monohydrolysis of diethyl 2,6-dimethyl-4-aryl-4H-pyran-3,5-dicarboxylates under quaternary ammonium salt catalysis conditions is presented. The catalytic activities of various quaternary ammonium salts were investigated using different molar ratios of NaOH and water-organic solvent mixtures. The results indicate that the combinati...
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ژورنال
عنوان ژورنال: Ultrasonics Sonochemistry
سال: 2010
ISSN: 1350-4177
DOI: 10.1016/j.ultsonch.2009.09.006