1H, 13C, 15N and 19F NMR study of acetylation products of heterocyclic thiosemicarbazones

LI Larina, VN Elokhina, TI Yaroshenko…

Index: Larina, Lyudmila I.; Elokhina, Valentina N.; Yaroshenko, Tatyana I.; Nakhmanovich, Anatolii S.; Dolgushin, Gennadii V. Magnetic Resonance in Chemistry, 2007 , vol. 45, # 8 p. 667 - 673

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Citation Number: 8

Abstract

Abstract Novel 2-acetylamino-4-acetyl-5-aryl (heteryl)-1, 3, 4-thiadiazolines, 2-acetylamino-5- aryl (heteryl)-1, 3, 4-thiadiazoles, and some of their salts were prepared and studied by multinuclear 1 H, 13 C, 15 N, 19 F and 2D NMR spectroscopy. The acetylation of thiosemicarbazones is accompanied by ring closure to form the corresponding 1, 3, 4- thiadiazolines and 1, 3, 4-thiadiazoles. 15 N NMR spectroscopy is a unique method for the ...