NEUGEBAUER, FRANZ A.;FISCHER, HANS;CROCKETT, ROWENA;KRIEGER, CLAUS, J. CHEM. SOC. PT 2. PERKIN TRANS.,(1990) N, C. 1619-1626
作者:NEUGEBAUER, FRANZ A.、FISCHER, HANS、CROCKETT, ROWENA、KRIEGER, CLAUS
DOI:——
日期:——
2,5-Dihydro-1,2,3,5-thiatriazole1-oxides, 2H-1,2,3,5-thiatriazol-1-ium salts, and 2,5-dihydro-1,2,3,5-thiatriazol-5-yl radicals. X-Ray molecular structure of 2,5-dihydro-2,4-diphenyl-1,2,3,5-thiatriazole 1-oxide and 2,4-diphenyl-2H-1,2,3,5-thiatriazol-1-ium bromide
作者:Franz A. Neugebauer、Hans Fischer、Rowena Crockett、Claus Krieger
DOI:10.1039/p29900001619
日期:——
5-dihydro-1,2,3,5-thiatriazole 1-oxides (5a–g). X-Ray analysis of compound (5c) confirmed the 2,5-dihydro structure which is also the predominant tautomer in solution. Reaction of compounds (5a–g) with phosphorus pentachloride or pentabromide led to the formation of yellow 2H-1,2,3,5-thiatriazol-1-ium salts (6a–h), the structure being established by X-ray structure analysis of compound (6h). Reduction
N-取代的氨甲dra(4a - g)与亚硫酰氯反应生成2,5-二氢-1,2,3,5-噻三唑1-氧化物(5a - g)。化合物(5c)的X射线分析证实了2,5-二氢结构,其也是溶液中的主要互变异构体。化合物(5a – g)与五氯化磷或五溴化磷的反应导致形成黄色的2 H -1,2,3,5-噻三唑-1-鎓盐(6a - h),该结构通过X射线确定化合物(6h)的结构分析。减少化合物(6a – h)在具有钠或钾金属的1,2-二甲氧基乙烷中容易生成2,5-二氢-1,2,3,5-噻三唑-5-基(1a – g),并使用ESR,EN DOR和常规方法进行了研究。三重共振光谱法。结果导致对所有耦合常数的完整分析和完全赋值。