Preferred orientations of the S O bond in methylsulphinyl derivatives of furan and thiophene: an experimental study based on 1 H, 13 C, and 17 O NMR spectroscopy
Abstract The preferred conformations of the methylsulphinyl group bonded to the heterocycles furan and thiophene have been studied with NMR techniques in solution. The presence of one halogen atom ortho to the methylsulphinyl group determines the orientation of the S O bond in the opposite direction with respect to the halogen, and the degree of coplanarity of this bond with the ring depends on the substitution pattern. The higher ...
