Novel Synthesis of Some 1, 2-Benzisothiazoline Derivatives: Cyclization of ortho-Sulfamoylcinnamates by the Michael Reaction
作者:B.K. Rao、Glenn H. Hamor
DOI:10.1002/jps.2600580528
日期:1969.5
ortho-sulfamoylcinnamic acid (II) by the procedure of Leov and Kormendy, the authors observed that the compounds obtained were not the expected cinnamic acid derivatives (II), but the derivatives of 1,2-benzisothiazoline (III). The 1,2-benzisothiazoline derivatives (III) are believed to have formed as a result of an intramolecular rearrangement of the cinnamates (II) by a mechanism similar to the Michael reaction
本文描述了一种新的合成方法,用于制备1,2-苯并噻唑啉3-乙酸1,1-二氧化物(III)的烷基酯。在尝试通过Leov和Kormendy的方法制备邻氨基磺酰基肉桂酸(II)的烷基酯时,作者观察到所获得的化合物不是预期的肉桂酸衍生物(II),而是1,2-苯并噻唑啉的衍生物(III)。据信,由于肉桂酸酯(II)的分子内重排是通过类似于迈克尔反应的机理而形成的1,2-苯并噻唑啉衍生物(III)。通过UV,IR,NMR和X射线晶体学研究提供了化学结构的证明。除常规药理筛选外,还合成了六种化合物并测试了抗电击活性。