Patent · US Expired

Reductive alkylation process for the preparation of compounds containing at least two amino groups

US6245941A · kind A · utility

0Cited by
9References
8Claims
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Assignee

Inventors

Key dates

Filing dateFeb 6, 1998
Grant dateJun 12, 2001
Priority date—
Expiry dateFeb 6, 2018

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C227/18
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

An alkylation process is described. The process comprises reacting at least a first nitrogen compound and a second nitrogen compound with a carbonyl compound in the presence of a reducing agent to form a product comprising at least two nitrogen groups; wherein the carbonyl compound comprises at least two carbonyl groups, the first nitrogen compound comprises a first nitrogen group reactive with one carbonyl group of the carbonyl compound and the second nitrogen compound comprises a second nitrogen group reactive with the other (or another) carbonyl group of the carbonyl compound, and wherein at least the first nitrogen compound or at least the second nitrogen compound comprises at least one other functional group. The process is especially suitable for the preparation of (S,S)-ethylenediaminedisuccinic acid (EDDS) of formula (1). ##STR1##

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.