Weber, Lothar; Luecke, Ewald; Boese, Roland:

Transition metal substituted acylphosphines and phosphaalkenes. XII. Transition metal sulfur ylide complexes. XXVII. Conversion of a phosphaalkenyliron complex (h5-C5Me5)(CO)2FeP:C(SiMe3)2 into (h3-phosphaallyl)iron complexes by means of Me2S(O):CH2: synthesis and molecular structures of two isomers of (h5-C5Me5)(CO)Fe{h3-P[CH(SiMe3)2](CHC:O)}.

In: Chemische Berichte (Chem.Ber.), Jg. 123 (1990) ; Nr. 1, S. 23-28
ISSN: 0009-2940
Zeitschriftenaufsatz / Fach: Chemie
Phosphaalkenyliron complex (h5-C5Me5)(CO)2FeP:C(SiMe3)2 (C5H5 = cyclopentadienyl) reacts with sulfur ylide Me2S(O):CH2 to give the h3-phosphallyliron complex I with a syn configuration in the organophosphorus ligand. In PhMe at 40 Deg I isomerizes to the corresponding anti configured complex (II). Structure and configuration of I-II were elucidated by spectroscopic methods (IR, 1H, 13C, 31P NMR, and MS) and by x-ray crystallog.