Brief introduction of 144222-34-4

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A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Recommanded Product: 144222-34-4, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 144222-34-4, Name is N-((1R,2R)-2-Amino-1,2-diphenylethyl)-4-methylbenzenesulfonamide, molecular formula is C21H22N2O2S. In a Article, authors is Tietze, Lutz F.，once mentioned of 144222-34-4

Synthesis of simple enantiopure tetrahydro-beta-carbolines and tetrahydroisoquinolines

Enantioselective hydrogenation of the imines 11-13, 27 and 30 with the Ru complex (R,R)-5 led to the tetrahydro-beta-carbolines (1S)-14, (1R)-21 and (1S)-22, and the tetrahydroisoquinoline (1S)-31 with ee > 95%. By employing (S,S)-5 the enantiomers are accessible. The imines 11-12 and 27 were obtained by oxidation of racemic 14, 21 and 22 with KMnO4 in > 58% yield.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI