Process for manufacturing 2-aminobutanol

Details Process for manufacturing 2-aminobutanol Process for manufacturing 2-aminobutanol

1974-03-18

1976-04-27

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 9102, C07C 9302, C07C 9310, C07C 9502

Patent

active

039535126

ABSTRACT:
The invention relates to a method of preparation of 2-aminobutanol from readily available raw materials. The method of this invention is based on the reaction between 1.2-epoxybutane or isomeric butylene halogenehydrines with ammonia. The product, isomeric aminobutanols, are, subsequently transformed into 2-ethylaziridine by means of esterification with sulphuric acid followed by treatment with alkali. 2-Ethylaziridine is then submitted to a reaction with aromatic carboxylic acid or with aromatic orthobicarboxylic acid anhydride which produces the corresponding monomeric or polymeric amide, which is transformed into 2-aminobutanol by hydrolysis.
The method of this invention is a multistage one but is quite simple and employs aqueous solutions and organic solvents, such as chloroform or benzene, which may be easily recovered.

REFERENCES:
patent: 3325476 (1967-06-01), DowBenko
patent: 3448153 (1969-06-01), Cavitt et al.
patent: 3660488 (1972-05-01), Cobb

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