On July 2, 1982, Brown, John M.; Parker, David published an article.Synthetic Route of 81616-80-0 The title of the article was Mechanism of asymmetric hydrogenation. Rhodium complexes formed by unsaturated carboxylic acids, carboxylates, and carboxamides. And the article contained the following:
��Unsaturated acids displace solvent from (R,R)-I (L = MeOH) cation, forming chelate complexes in which olefin and carboxylate are bound to the metal. The strength of complexation is enhanced in basic media and propenoic or 2-methylpropenoic acid form a different type of species with 2:1 stoichiometry in the absence of base. ��And ��unsaturated amides likewise form complexes in which olefin and carboxamide O are bound to Rh. The ratio of diastereomers observed by 31P NMR does not correlate with optical yields in hydrogenation of these precursors. In related experiments with (R,R)-[1,2-bis(o-anisylphenylphosphino)ethane]bis(methanol)rhodium cation, 2-methylenesuccinic acid and its Me esters gave a variety of complexes, including tridentate species where both carboxyl groups and olefin were concomitantly bound. The experimental process involved the reaction of (S)-2-(2-Methoxyphenyl)propanoic acid(cas: 81616-80-0).Synthetic Route of 81616-80-0
The Article related to asym hydrogenation rhodium complex, rhodium carboxylate carboxamide complex, olefin rhodium complex, Organometallic and Organometalloidal Compounds: Group Viii – Co, Ni, Ru, Rh, Pd, Os, Ir, Pt and other aspects.Synthetic Route of 81616-80-0
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