Ubergangsmetall-substituierte Phosphane, Arsane und Stibane, LIX [1], Ein Addukt des Me3P-substituierten Ferrio-diphenylphosphans Cp(OC)(Me3P)Fe-PPh2 mit Methylisothiocyanat: Darstellung, Protonierung und Methylierung / Transition Metal Substituted Phosphanes, Arsanes and Stibanes, LIX [1]. An Adduct of the Me3P-Substituted Ferrio-diphenylphosphane Cp(OC)(Me3P)Fe-PPh2 and Methylisothiocyanate: Synthesis, Protonation, and Methylation

Abstract

Abstract Treatment of the ferrio-phosphane Cp(OC)2Fe-PPh2 (1) with Me3P (2) yields Cp(OC)(Me3P)Fe-PPh2 (3) via CO-substitution. Reaction of 3 with methylisothiocyanate (4) leads to the formation of the adduct Cp(OC)(Me3P)Fe-PPh2 -C(S)NMe (5), which is regioselectively methylated at the sulfur atom with Mel (6a) or MeSO3CF3 (6b), respectively, to give the cationic complexes [Cp(OC)(Me3P)Fe-PPh2 -C(SMe)=NMe]I/CF3 SO3(7a,b). In contrast, protonation with CF3SO3H (8 ) occurs at the nitrogen atom, yielding [Cp(OC)(Me3P)Fe-PPh2- C(S)-N(H)Me]CF3SO3 (9). The structures of 7b and 9 have been determined by X-ray diffraction analysis