Hydrogenation and Related Reactions

However, as it is often stated in catalysis papers and textbooks, there is no such a thing as a universal catalyst so the number of chiral ligands continues to grow. This search rediscovered, around 20 years after DiPAMP, that P-stereogenic phosphines and derivatives are indeed a superb but underdeveloped class of ligands for homogeneous hydrogenation. 

This chapter describes the results on hydrogenation of several families of substrates including alkenes, ketones and imines with Rh, Ru, Ir and Pd complexes bearing P-stereogenic ligands. In addition, a section with a brief 

P-Stereogenic Ligands in Enantioselective Catalysis By Arnald Grabulosa Arnald Grabulosa 2011 

The chapter ends with a description of catalytic hydrosilylation and hydrogen transfer, which are reductions of ketones groups to the parent alcohols but avoiding the use of dihydrogen. 

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Kursanov, D. N. Parnes, Z. N. Kalinkin, M. I. Loim, N. M. Ionic Hydrogenation and Related Reactions-, Harwood Academic Publishers Chur, Switzerland, 1985. 

D.N. Kursanov, Z.N. Parnes, M.I. Kalin-kin, N.M. Loim, Ionic Hydrogenation and Related Reactions, Harwood Academic Publishers, New York, 1985. 

The product formulas are those suggested from both the stoichiometry and the ESR spectra. Thus in the 2 1 reaction, the latter technique suggests that both Cp2TiH2AlCl2 and Cp2TiCl are present, presumably in some trinuclear product (59). The presence of Ti-H bonds may be inferred in various solutions of titanium chlorides (TiCU, Cp2TiCl2, etc.) with various metal hydrides, where such solutions are used as catalysts for the hydrogenation (and related reactions) of alkenes (60-63). 

Ionic Hydrogenation and Related Reactions Hamood Academe Pid3 1985... 

G. C. Bond, Mechanism of Catalytic Hydrogenation and Related Reactions, Quart. Revs. (London), 8, 279 (1954). 

CATALYTIC HYDROGENATION AND RELATED REACTIONS 9.5.1. Direct Transfer of Hydrogen from Hg Ligands... 

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