Iodine- and TBHP-Promoted Acylation of Benzothiazoles under Metal-Free Conditions
作者:Keyume Ablajan、Bin Wang、Qianwei Zhang、Zhongqi Guo
DOI:10.1055/s-0040-1707204
日期:——
I2 and TBHP is described. Acylation of the benzothiazoles is achieved through a sequence involving oxidation of the aryl ketone to an aryl glyoxal, ring-opening of the benzothiazole followed by condensation of the amino group with the aryl glyoxal, cyclization and oxidation. The method avoids the use of metals and toxic solvents. In addition, this protocol has the advantage of broad scope and provides
摘要 描述了在I 2和TBHP存在下使用芳基酮和苯并噻唑合成2-酰基苯并噻唑的简单方法。苯并噻唑的酰化反应是通过以下步骤实现的:涉及将芳基酮氧化为芳基乙二醛,将苯并噻唑开环,然后将氨基与芳基乙二醛缩合,环化和氧化。该方法避免使用金属和有毒溶剂。另外,该协议具有范围广的优点,并提供了良好的产品产量。