Phosphorus pentasulfide and Lawesson reagent in synthesis of 1,3-thiazole-4-thiol derivatives
作者:A. G. Belyuga、V. S. Brovarets、B. S. Drach
DOI:10.1007/s11176-005-0024-5
日期:2004.9
Available S-amidophenacylation products of thiols and sulfanylphenols on treatment with phosphorus pentasulfide or, which is better, Lawesson reagent convert into the corresponding 1,3-thiazole-4-thiol derivatives that are easily oxidized with hydrogen peroxide. The latter reaction was used to introduce a series of alkyl- or arylsulfonyl groups in the 4 position of the thiazole ring. This general approach significantly extends the limited range of synthetic procedures for 1,3-thiazole-4-thiol derivatives.
硫醇和硫代苯酚的现有 S-酰胺酰化产物在用五硫化二磷或更好的劳森试剂处理后,会转化为相应的 1,3-噻唑-4-硫醇衍生物,这些衍生物很容易被过氧化氢氧化。后一种反应用于在噻唑环的 4 位引入一系列烷基或芳基磺酰基。这种通用方法大大扩展了 1,3-噻唑-4-硫醇衍生物的有限合成程序范围。