Process for producing chiral glycine derivatives

Details Process for producing chiral glycine derivatives Process for producing chiral glycine derivatives

C - Chemistry, Metallurgy

07

D

260/315.1

C07D 233/38 (2006.01)

Patent

CA 1296733

ABSTRACT OF THE DISCLOSURE By a simple enantiomer separation of 1,3-imidazolin- 4-ones produced from glycine esters, primary alkyl amines and pivaldehyde and having the general formula Image (II), wherein R represents a straight-chain or branched C1 to C4 - alkyl group with a chiral acid, chiral glycine derivatives having the general formula Image (I), wherein R is as above, * represents an asymmetry centre and R1 represents a phenyl or benzyl group, a phenoyl-oxy or benzyl- oxy group, preferably the phenyl group or a phenyl group mono- or tri-substituted in any ring portion by a C1 to C4-alkyl or alkoxy group are readily accessible. On diastereo-selective .alpha.-alkylation they result in branched and non-branched pro- teinogenic or non-proteinogenic (R)- and (S)-amino acids.

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