A series of thieno [2,3-ƒ]-, [3,2-ƒ]- and [3,4-ƒ]morphans prepared both by the Grewe synthesis and by the reaction of 2-cyanopyridines with 3-thienyllithium is described. Furthermore, a new synthetic route to thieno [2,3-ƒ] morphans from 3-ketotetrahydrolhiophene is reported. Separation and assignment of the α- and β-diastereomerie structures by means of nmr data is reported. Some side products were
描述了通过Grewe合成以及2-
氰基吡啶与3-
噻吩基
锂的反应制备的一系列
噻吩并[2,3-ƒ]-,[3,2-ƒ]-和[3,4-ƒ]吗啉。 。此外,据报道,从3-酮
四氢噻吩化合物合成
噻吩并[2,3-ƒ]
吗啡的新途径。报告了通过核磁共振数据分离和分配α-和β-非对映异构结构。分离了一些副产物,并根据其光谱数据确定了其结构。提出了形成它们的机制。