Technical Notes:
1. Highly reactive enantioselective catalyst for the asymmetric hyd rogenation of various substituted dehydroalanines to N-protected aminoacids. Also, catalyst is very effective in the asymmetric reduction of pentapetides that contain unsaturated Phe or Tyr linkages to enkephalin, a brain peptide hormone .
2.Efficient catalyst for the asymmetric reduction of enol acetates to esters.
3.Catalyst used to prepare chiral 2-substituted succinic acid derivatives.
References:
1.J.D. Morrison, Ed., Asymmetric Synthesis (Academic Press, New York, 1985), Vol. 5, 71.
2.Tetrahedron: Asymmetry, 1992. 3, 1247.
3.J.R. Kosak and T.A. Johnson, Eds., Chem Ind. (Marcel Dekker, Inc., New York, 1994) Vol. 53, 81.