作者:Werner Schroth、Michael Felicetti、Ekkehard Hintzsche、Roland Spitzner、Maren Pink
DOI:10.1016/s0040-4039(00)73026-7
日期:1994.3
Thioxo-isoindigoide compounds E are accessible only in special cases, depending on the resonance situation in the heterocyclic unit, whereas the thioxo-indigoide species A are at all unknown. Thus the oxidation of the corresponding leuko-isoindigoide precursors affords either 3 as a representative of E by predominance of thioamide conjugation, or the unusual 12-membered cyclic bis-disulfides 4 and 10, respectively, according to type H by predominance of hetarene stabilization.