Resolution of N-acyl-DL (+)-phenylalanines

Details Resolution of N-acyl-DL (+)-phenylalanines Resolution of N-acyl-DL (+)-phenylalanines

1978-06-02

1979-04-24

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

562401, C07C10108

Patent

active

041511980

ABSTRACT:
The treatment of N-acyl-DL(+)-phenylalanines with D(-)-2-(2,5-dimethylbenzylamino)-1-butanol results in the formation of the D(-)-2-(2,5-dimethylbenzylamino)-1-butanol salt which is obtained as a crystallizate of the N-acyl-L(+)-phenylalanine and from which the desired N-acyl-L(+)-phenylalanine, an intermediate useful for the preparation of artificial sweetening agents, can be recovered.

REFERENCES:
patent: 3734952 (1973-05-01), Krubiner
patent: 3969397 (1976-07-01), Kaiser et al.
patent: 4005088 (1977-01-01), Gubbels et al.
patent: 4016205 (1977-04-01), Kariyone et al.

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