CONFIGURATIONALLY AND CONFORMATIONALLY HOMOGENEOUS CYCLIC N-ARYL SULFIMIDES .3. STEREOCHEMISTRY OF REARRANGEMENT

Configurationally and conformationally homogeneous thiane- and trans- and cis-1-thiadecalin-1-N-p-chlorophenyl imides were rearranged to the corresponding 2-(2'-amino-5'-chlorophenyl)-sulfides and the configurations of the products were assigned by 1H-NMR spectroscopy. If sterically unhindered, rearrangements proceeded with a high degree (95%) of stereospecifity: sulfimides with equatorial S-N-bond gave rearranged products with axial, sulfimides with axial S-N-bond gave rearranged products with equatorial aryl substituent. The proposed concerted mechanism via a cyclic transition state is supported by these results. © 1979.