Chemistry of the 1,3,5-Triaza-2-phosphorin-4,6-diones, Part XI*. Base-Catalyzed Addition Reactions of 2-Oxo-2-hydro-1,3,5-trimethyl-1,3,5-triaza-2λ<sup>4</sup>-phosphorine-4,6-dione to the C=N Double Bond of 3-Thiazoline Heterocycles
作者:Ion Neda、Thomas Kaukorat、Peter G. Jones、Reinhard Schmutzler、Harald Grögerh、Jürgen Marte
DOI:10.1515/znb-1996-1020
日期:1996.10.1
base-catalyzed reaction of 2-oxo-2-hydro-1,3,5-trimethyl-1,3,5-triaza-2λ4-phosphorine- 4,6-dione (1) and of its trimethylsiloxy phosphorus(III) derivative (10) with various 3-thiazolines (2 -5 ) via five different pathways is described. In all cases, the corresponding 3-thiazoline adducts were formed. The different routes are compared with regard to reaction conditions and yields. In the reaction of 1 with
2-oxo-2-hydro-1,3,5-trimethyl-1,3,5-triaza-2λ4-phosphorine-4,6-dione (1) 与其三甲基甲硅烷氧基磷 (III) 的碱催化反应描述了通过五种不同途径具有各种 3-噻唑啉 (2 -5 ) 的衍生物 (10)。在所有情况下,都形成了相应的 3-噻唑啉加合物。在反应条件和产率方面比较了不同的路线。在 1 与 5,5-二甲基-2-异丙基-3-噻唑啉 (3) 的反应中,形成了 7 的两种非对映异构体,这通过 1H、13C 和 31P NMR 光谱确定。产物6和8的结构经X射线分析证实;噻唑烷环通过硫原子显示扭曲构象。分子通过反转中心通过 NH···O= C 形式的氢键连接。