Zobrazeno 1 - 10
of 17
pro vyhledávání: '"S V, Usol'tseva"'
Autor:
S. V. Usol'tseva, G. P. Andronnikova
Publikováno v:
Chemistry of Heterocyclic Compounds. 30:234-237
In the interaction of 2-α-clzlorobenzylidenehydrazino-4-ethoxycarbonylthiazole with nucleophiles, two competing reactions take place. 1) nucleophilic replacement of the chlorine atom to form the corresponding substitution product; 2) elimination of
Publikováno v:
Chemistry of Heterocyclic Compounds. 29:226-230
Bromination of the 4-carbethoxy- and 4-carboxy-2-thiazolylhydrazones of aldehydes and ketones occurs principally at the 5 position of the thiazole ring. In the case of aldehyde hydrazones an excess of bromine leads to substitution of the methine hydr
Publikováno v:
ChemInform. 23
Depending on the reaction conditions, 2-amino-1,3,4-thiadiazine and 2-hydrazinothiazole derivatives were obtained by cyclization of thiosemicarbazide with ethyl bromopyruvate in concentrated hydrochloric acid. The rearrangements of 5-carbonyl-substit
Publikováno v:
ChemInform. 23
Publikováno v:
ChemInform. 23
Publikováno v:
ChemInform. 24
Publikováno v:
ChemInform. 25
Publikováno v:
ChemInform. 25
Bromination of the 4-carbethoxy- and 4-carboxy-2-thiazolylhydrazones of aldehydes and ketones occurs principally at the 5 position of the thiazole ring. In the case of aldehyde hydrazones an excess of bromine leads to substitution of the methine hydr
Autor:
G. P. Andronnikova, S. V. Usol'tseva
Publikováno v:
ChemInform. 26
Autor:
S. V. Usol'tseva, G. P. Andronnikova
Publikováno v:
ChemInform. 26