کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1270767 972505 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sono-thermal oxidation of dihydropyrimidinones
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Sono-thermal oxidation of dihydropyrimidinones
چکیده انگلیسی

Combination of ultrasound and heat has been used for the oxidation of some ethyl 3,4-dihydropyrimidin-2(1H)-one-5-carboxylates to their corresponding ethyl pyrimidin-2(1H)-one-5-carboxylates by using potassium peroxydisulfate in aqueous acetonitrile. An ultrasonic probe of 24 kHz frequency has been used for this study. Whereas the use of ultrasound increases the rate of reactions compared with reactions at reflux conditions, the nature of 4-substituent on the dihydropyrimidinone ring affects also the rate of reaction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 15, Issue 6, September 2008, Pages 1015–1018
نویسندگان
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