Synthesis and redox properties of substituted 1,4,2-dithiazines: X-ray crystal structure of 3-(4-methoxyphenyl)-5,6-dimethyl-1,4,2-dithiazine
作者:Martin R. Bryce、Gordon R. Davison、Judith A. K. Howard、Andrei S. Batsanov
DOI:10.1039/c39920000478
日期:——
The efficient synthesis of a range of novel 1,4,2-dithiazine derivatives by ring expansion of the corresponding 1,3-dithiolium cations in the presence of iodine and aqueous ammonia is reported; the eight π-electron 1,4,2-dithiazine ring is folded about the S ⋯ S axis, as shown by single crystal X-ray analysis, and the heterocycle is electrochemically oxidised to yield, sequentially, the radical cation and dication species.
在碘和氨水的作用下,通过相应1,3-二硫鎓阳离子的环扩张,一系列新型1,4,2-二噻嗪衍生物的高效合成被报道;八π电子1,4,2-二噻嗪环围绕S ⋯ S轴折叠,如单晶X射线分析所示,杂环被电化学氧化,依次产生自由基阳离子和二阳离子。