Hydrogenation of aromatic-substituted olefins using organometallic catalyst
AssigneeEthyl Corporation
InventorCharles H. Kolich
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Abstract
A ruthenium-phosphite complex having the formula ##STR1## wherein a is from 1 to 3; b is 1 or 2; c is from 0 to 3; and R is hydrogen, alkyl, aryl, halo, amino, acetylamino, or sulfo; and X is ##STR2## where R.sub.1, R.sub.2, and R.sub.3 are the same or different and are hydrogen or C.sub.1 to C.sub.6 linear or branched alkyl. This complex can be used to effect the reduction of unsaturated organic compounds or, when comprised of ligands having optical activity, can be used as the catalyst for effecting the asymmetric reduction of unsaturated organic compounds.
Claims8
A ruthenium-phosphite complex having the formula ##STR10## wherein a is from 1 to 3;
- b is 1 or 2;
- c is from 0 to 3;
- and R is hydrogen, alkyl, aryl, halo, amino, acetylamino, or sulfo;
- and X is ##STR11## where R.sub.1, R.sub.2, and R.sub.3 are the same or different and are hydrogen or C.sub.1 to C.sub.6 linear or branched alkyl;
- and R.sub.4 taken together with the nitrogen atom is a straight or branched chain alkyl having 1 to 20 carbon atoms.
A ruthenium-phosphite complex having the formula ##STR12## where X is ##STR13## and a is from 1 to 3;
- b is 1 or 2;
- and c is from 0 to 3.
Dependencies are inferred from the claim text.