2-Dimethoxyphosphoryl-1,3-dithiane was obtained by the reaction of 2-chloro-1,3-dithiane with trimethyl phosphite. Studies at 200, 360 and 400 MHz using 1H, 13C and 31P nuclei and 1D- and 2D NMR techniques are described. Long-range coupling constants were extracted by iterative treatment of [AB]2CDMR6X spin systems. A rigid dithiane structure with axial phosphorus is consistent with the NMR results. Analogous dithianes and solid-state structures are discussed.
2-Cloro-1,3-dithiane 与亚
磷酸三甲酯反应生成 2-二甲氧基
磷酰-
1,3-二噻烷。文中介绍了使用 1H、13C 和 31P 核以及一维和二维 NMR 技术在 200、360 和 400
MHz 下进行的研究。通过对 [AB]2C
DMR6X 自旋系统进行迭代处理,提取了长程耦合常数。具有轴向
磷的刚性二
硫环结构与核磁共振结果一致。讨论了类似的二噻烷和固态结构。