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
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