High regioselective ultrasonic-assisted synthesis of 2,7-diaryl-4,7-dihydropyrazolo[1,5-a]pyrimidine-5-carboxylic acids |
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| Authors: | Chebanov Valentin A Sakhno Yana I Desenko Sergey M |
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| Institution: | a SSI “Institute for Single Crystals” NAS of Ukraine, Lenin Ave. 60, Kharkiv 61001, Ukraine
b V.N. Karazin Kharkiv National University, Svobody sq. 4, Kharkiv 61077, Ukraine |
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| Abstract: | New and high regioselective method of the synthesis of 2,7-diaryl-4,7-dihydropyrazolo1,5-a]pyrimidine-5-carboxylic acids by reaction of 3-aryl-5-aminopyrazoles with arylidenpyruvic acid at room temperature under ultrasonication was developed and discussed. |
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| Keywords: | Heterocycle Ultrasonication Regioselectivity Pyruvic acid 5-Aminopyrazole Pyrazolopyrimidine |
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