S 72 Sonochemical synthesis of Biginelli compounds [Electronic resource] / M. S. Zhidovinova, O. V. Fedorova, G. L. Rusinov, I. G. Ovchinnikova // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2003. - Vol. 52, № 11. - P2527-2528 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The ultrasound effect accelerates the Biginelli reaction 40 and more times. A sonochemical method for the synthesis of ethyl 4-R-6-methyl-2-oxo- and 4-R-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylates was developed. The target products were obtained within 2 to 5 min in 90—95% yields. \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2003, 52 (11), 2527.pdf |