A. Marinetti et al., Synthesis of 1,1'-bis(phosphetano)ferrocenes, a new class of chiral ligands for asymmetric catalysis, SYNLETT, (12), 1999, pp. 1975-1977
The C-2-symmetric, chiral 1,1'-bis(phosphetano)ferrocenes 1 have been prepa
red from the cyclic sulfates of optically pure, 1,3-diols. They have been t
ested in the rhodium catalysed hydrogenation of unsaturated substrates.