Oxalic Acid → (S)-2,2-diphenyl-2-(pyrrolidin-3-yl)acetonitrile

Participants

Reaction Conditions

Reaction Steps

The procedure of Example 1 was followed except that the autoclave was charged with 3.9 g of 79% pure (S)-1-benzyl-3-(1-cyano-1,1-diphenylmethyl)-pyrrolidine, 3.1 ml of ethanol, 786 mg of oxalic acid and 158 mg of moist 5% palladium-carbon (water content 52% by weight) and that hydrogen was introduced thereinto and the autoclave was heated to thereby raise the temperature to 60° C. and the pressure to 203 kPa and the reaction was allowed to proceed for 3.5 hours. (S)-3-(1-Cyano-1,1-diphenylmethyl)-pyrrolidine was obtained in a yield of 70 mole percent.

Provenance & Evidence