Ultrasound irradiation promotes the synthesis of new 1, 2, 4-triazolo [1, 5-a] pyrimidine

…, TS München, N Zanatta, HG Bonacorso, L Buriol…

Index: Frizzo, Clarissa P.; Scapin, Elisandra; Marzari, Mara R.B.; Muenchen, Taiana S.; Zanatta, Nilo; Bonacorso, Helio G.; Buriol, Lilian; Martins, Marcos A.P. Ultrasonics Sonochemistry, 2014 , vol. 21, # 3 p. 958 - 962

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Citation Number: 7

Abstract

... Ultrasonics Sonochemistry. Volume 21, Issue 3, May 2014, Pages 958–962. ... The reaction mixtures were then sonicated by an ultrasonic probe of 6 mm and amplitude of 20%, at a programmed temperature of between 75 °C and 99 °C, for 5–17 min. ... 7-Trifluoromethyl-5-phenyl-1,2,4-triazolo[ 1,5-a]pyrimidine (3a): mp 144 °C–146 °C; 1 H NMR (200 MHz, CDCl 3 ): δ = 7.60–7.59 (m, 3H, H-Ar), 7.92 (s, 1H, H2), 8.26–8.21 (m, 2H, H-Ar), 8.63 (s, 1H, H6). ...