Transformation of 1,2,3-Thiadiazolyl Hydrazones as Method for Preparation of 1,2,3-Triazolo[5,1-<i>b</i>][1,3,4]thiadiazines
作者:Tatiana A. Kalinina、Olga A. Bystrykh、Tatiana V. Glukhareva、Yuri Yu. Morzherin
DOI:10.1002/jhet.2554
日期:2017.1
The transformation of 1,2,3‐thiadiazolyl hydrazones of aldehydes and ketones including Dimroth rearrangement giving 1‐alkylidenamino‐5‐mercapto‐1,2,3‐triazoles, alkylation of mercapto group of these heterocyclic compounds by α‐bromoacetophenones and cyclization giving 6,7‐dihydro‐5H‐[1,2,3]triazolo[5,1‐b][1,3,4]thiadizines have been investigated. It was shown that the reaction for hydrazones of acetophenones
醛和酮的1,2,3-噻二唑hydr的转化,包括Dimroth重排,生成1-亚烷基氨基-5-巯基1,2,3-三唑,这些杂环化合物的巯基通过α-溴乙酰苯的烷基化和环化反应对6,7-二氢-5H- [1,2,3]三唑[5,1– b ] [1,3,4]噻二嗪进行了研究。结果表明,苯乙酮与苯甲醛的的反应是非对映选择性的。通过转化环酮的prepared制备三唑并二嗪螺衍生物。