反应 #3422296
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US05312985
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: Preferably in this method of synthesis, the thionyl chloride or oxalyl chloride is added to a suspension of sodium pyruvate to yield the pyruvyl chloride to which is added the of glycine benzyl ester hydrochloride. The resulting slurry is cooled during the addition of N-methylmorpholine solution to yield a pyruvyl-glycine benzyl ester. The yielding of the pyruvyl-glycine benzyl ester occurs after warming, the addition of water, separation, washing, drying, evaporation, precipitation, filtering, and drying again. The pyruvyl-glycine benzyl ester is then charged in a hydrogen pressure vessel in a solvent and a palladium on carbon catalyst, with the hydrogen pressure being approximately 60 psi such that hydrogen is digested whereby following filtering, concentration, precipitation, filtering, and drying there is yielded pyruvyl-glycine. after warming washing drying evaporation, precipitation filtering drying again The pyruvyl-glycine benzyl ester is then charged in a hydrogen pressure vessel in a solvent following filtering concentration, precipitation filtering drying there
来源 ID: ord-f992b7ce09b145ab96048d2a60717b21