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U.S. Department of Energy
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Synthesis of an acid addition salt of delta-aminolevulinic acid from 5-bromo levulinic acid esters

Patent ·
OSTI ID:6281392

A process is disclosed for preparing an acid addition salt of delta-aminolevulinic acid comprising. The process involves dissolving a lower alkyl 5-bromolevulinate and an alkali metal diformylamide in an organic solvent selected from the group consisting of acetonitrile, methanol, tetrahydrofuran, 2-methyltetrahydrofuran and methylformate or mixtures to form a suspension of an alkyl 5-(N,N-diformylamino) levulinate ester; and hydrolyzing the alkyl 5-(N,N-diformylamino) levulinate with an inorganic acid to form an acid addition salt of delta-amino levulinic acid.

Sponsoring Organization:
DOE; USDOE, Washington, DC (United States)
DOE Contract Number:
AC36-83CH10093
Assignee:
Midwest Research Inst., Kansas City, MO (United States)
Patent Number(s):
A; US 5907058
Application Number:
PPN: US 9-124489
OSTI ID:
6281392
Country of Publication:
United States
Language:
English