Synthesis of <i>N</i>-Formyl-2-benzoyl Benzothiazolines, 2-Substituted Benzothiazoles, and Symmetrical Disulfides from <i>N</i>-Phenacylbenzothiazolium Bromides
作者:Subas Chandra Sahoo、Subhas Chandra Pan
DOI:10.1021/acs.orglett.9b01990
日期:2019.8.16
An unusual aerobic hydrolysis-cascade reaction has been developed with N-phenacylbenzothiazolium bromides by treatment with organic and inorganic base. The corresponding N-formyl-2-benzoyl benzothiazoline and 2-substituted benzothiazole products were obtained in moderate to good yields under mild reaction conditions. Also, symmetrical disulfide was formed when keto group was replaced with ester. The
通过用有机碱和无机碱处理,N-苯甲酰基苯并噻唑鎓溴化物已发展出一种不寻常的好氧水解-级联反应。在温和的反应条件下,以中等至良好的产率获得了相应的N-甲酰基-2-苯甲酰基苯并噻唑啉和2-取代的苯并噻唑产物。另外,当酮基被酯取代时,形成对称的二硫键。反应的范围是相当宽的耐受性芳基,杂芳基和烷基。