Process for the preparation of 5-(4-aminobutyl) hydantoin and/or

Details Process for the preparation of 5-(4-aminobutyl) hydantoin and/or Process for the preparation of 5-(4-aminobutyl) hydantoin and/or

1977-04-04

1978-10-10

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260553R, C07D23376, C07C12715

Patent

active

041197828

ABSTRACT:
5-(4-Aminobutyl) hydantoin is prepared by hydrogenation of 5-(3-cyanopropyl) hydantoin in the liquid phase with a catalyst and ammonia in the presence of greater than 0.4 up to about 2.0 of a dissolved alkali hydroxide per mole of hydantoin to be hydrolyzed. Use of the stated quantity of alkali hydroxide avoids catalyst loss by dissolution yet maintains hydrogenation efficiency.

REFERENCES:
patent: 2688023 (1954-08-01), Rogers
patent: 3210400 (1965-10-01), Brakebill
patent: 3758494 (1973-09-01), Suverkropp et al.
patent: 3911001 (1975-10-01), Suverkropp et al.
Chemical Abstracts Fifth Decennial Index, vols. 41-50, 1947-1956, Subjects TH-Z, p. 13169s.
Chemical Abstracts Subject Index, A-H, vol. 56, Jan.-Jun. 1962, pp. 26N-28N.

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