Process for preparing vanillylamine hydrochloride

Details Process for preparing vanillylamine hydrochloride Process for preparing vanillylamine hydrochloride

2005-10-25

2005-10-25

O'Sullivan, Peter (Department: 1621)

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

Organic compounds

Amino nitrogen containing

C564S259000, C514S654000

Reexamination Certificate

active

06958418

ABSTRACT:
Process for preparing vanillylamine or one of the salts thereof by reacting vanillin with hydroxylamine or the salts thereof in the presence of an organic salt, which may optionally be produced in situ, wherein the reaction is carried out in an inorganic or organic acid as diluent, and subsequently hydrogenating the resulting vanillyloxime with hydrogen in the presence of a suitable catalyst and an organic and/or inorganic acid.

REFERENCES:
patent: 2711428 (1955-06-01), Goodson et al.
Gannett et al., “The Capsaicinoids: Their Separation, Synthesis, and Mutagenicity,” J. Org. Chem., 1988, 53, 1064-1071, pp. 1064-1071.
Preuner, R.; Chem. Abstract 46:21302 (1952).
March, Jerry; Advanced Organic Chemistry: Reactions, Mechanisms, and Structure: Reactions vol. 6 No. 23 p. 675; McGraw- Hill Book Co. New York (1968).

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