Process for preparing N-alkylethylenediamines

Details Process for preparing N-alkylethylenediamines Process for preparing N-alkylethylenediamines

1979-06-14

1980-08-12

Doll, John

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260583N, C07C 8504, C07C 8526

Patent

active

042173086

ABSTRACT:
This disclosure describes a novel process for preparing N-alkylethylenediamines which are useful as intermediates for purifying penicillins. N-alkylethylenediamines are also useful for preparing penicillins and cephalosporins. Specifically, N-ethylethylenediamine is useful for manufacturing piperacillin which is useful as an antibiotic.
More particularly, the invention relates to a process for the efficient reaction of an alkyl halide and ethylenediamine and the recovery of anhydrous, ethylenediamine-free N-alkylethylenediamines therefrom.

REFERENCES:
patent: 4061633 (1977-12-01), Blyakhman et al.
Linsker et al., "JACS", vol. 67, pp. 1581-1582, (1945).

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