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Title: Synthesis of acid addition salt of delta-aminolevulinic acid from 5-bromo levulinic acid esters

A process of preparing an acid addition salt of delta-aminolevulinc acid comprising: a) dissolving a lower alkyl 5-bromolevulinate and hexamethylenetetramine in a solvent selected from the group consisting of water, ethyl acetate, chloroform, acetone, ethanol, tetrahydrofuran and acetonitrile, to form a quaternary ammonium salt of the lower alkyl 5-bromolevulinate; and b) hydrolyzing the quaternary ammonium salt with an inorganic acid to form an acid addition salt of delta-aminolevulinic acid.
Authors:
 [1]
  1. (Lakewood, CO)
Publication Date:
OSTI Identifier:
958116
Report Number(s):
6,583,317
US patent applciation 09/691,474
DOE Contract Number:
AC36-83CH10093
Resource Type:
Patent
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English