Synthesis and research of cis-trans isomerism for 5-(4-methoxybenzoyl)-6-(4-metoxyphenyl)-6,7-dihydro-5H-[1,2,3]triazolo[5,1-b][1,3,4]thiadiazine
Copyright policy )Synthesis and research of cis-trans isomerism for 5-(4-methoxybenzoyl)-6-(4-metoxyphenyl)-6,7-dihydro-5H-[1,2,3]triazolo[5,1-b][1,3,4]thiadiazine
It was shown that the reaction of 1,2,3-4-methoxybenzaldehyde tiadiazolyl hydrazona and α-bromo-4-methoxyacetophenone in the presence of triethylamine allowes 5-(4-methoxybenzoyl)-6-(4-methoxyphenyl)-6,7-dihydro-5H-[1,2,3]triazolo[5,1-b][1,3,4]thiadiazine as a mixture of cis- and trans-stereoisomers. The influence of nature of the solvent and temperature on the ratio of isomers was studied. An increase of the relative amount of the trans-stereoisomer with increasing polarity of the solvent is disclosed. It is noted that the temperature does not affect the ratio of isomers.
- Nankai University China (People's Republic of)
- Ural Federal University (UrFU)
- Ural Federal University Russian Federation
Chemistry, 1,2,3-тиадиазол; перегруппировка Димрота; тиадиазины; изомерия; влияние температуры; растворитель, растворитель, тиадиазины, изомерия, 1,2,3-тиадиазол, влияние температуры, QD1-999, 1,2,3-thiadiazole; Dimroth rearrangement; thiadiazine; isomerism; effect of temperature; solvent, перегруппировка димрота
Chemistry, 1,2,3-тиадиазол; перегруппировка Димрота; тиадиазины; изомерия; влияние температуры; растворитель, растворитель, тиадиазины, изомерия, 1,2,3-тиадиазол, влияние температуры, QD1-999, 1,2,3-thiadiazole; Dimroth rearrangement; thiadiazine; isomerism; effect of temperature; solvent, перегруппировка димрота
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