Tetrahedron Asymmetry p. 2461 - 2468 (1993)
Update date:2022-08-10
Topics:
Wan
Davis
Ruthenium (II)-sulfonated-BINAP has been synthesized and this novel water-soluble complex is shown to be an excellent asymmetric hydrogenation catalyst for 2-acylamino acid precursors and methylenesuccinic acid in both methanolic as well as in neat water solvent systems. Enantiomeric excesses approaching 90% have been obtained in aqueous and methanolic solvents. Effects of solvent, pressure and the addition of organic base on enantioselectivity are described.
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Doi:10.1021/ja00441a082
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(1981)
