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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

Author:
Malisch, Wolfgang, Spörl, Andre, Thirase, Katharina, Fey, Oliver
Source:
Zeitschrift für Naturforschung 1998 v.53 no.10 pp. 1077-1083
ISSN:
1865-7117
Subject:
X-ray diffraction, methyl isothiocyanate, methylation, nitrogen, regioselectivity, sulfur
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
Agid:
5220960