Ge. Herberich et S. Moss, 1,1'-BIS(METHYLPHENYLPHOSPHANYL)FERROCENE - SYNTHESIS AND COMPLEXES WITH THE TETRACARBONYLCHROMIUM FRAGMENT, Chemische Berichte, 128(7), 1995, pp. 689-693
1,1'-Bis(methylphenylphosphanyl)ferrocene (mppf) (2) was synthesized f
rom dilithioferrocene and PMePh(OC6H4-4-Me). The diastereomers rac-2 a
nd meso-2 were separated by fractional crystallization from ethanol. T
he tetracarbonyl-chromium complexes (rac-2)Cr(CO)(4) (rac-5) and (meso
-2)Cr(CO)(4) (meso-5) were obtained photochemically from hexacarbonylc
hromium and mppf in near quantitative yield. The structures of rac-2,
rac-5, and meso-5 were determined by X-ray crystallographic analysis.