Process for preparing isocitric acid, alloisocitric acid and lac

Details Process for preparing isocitric acid, alloisocitric acid and lac Process for preparing isocitric acid, alloisocitric acid and lac

1975-12-22

1977-05-10

Jaisle, Cecilia M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260535R, 260485H, C07D30732, C07C 5109

Patent

active

040228037

ABSTRACT:
Novel methods for preparing polycarboxylic compounds which are useful as metal sequestrants and food acidulants are disclosed. These compounds, isocitric acid, alloisocitric acid and lactones thereof, can also be neutralized to the corresponding salts, which in turn are metal sequestering agents. The novel methods for the preparation of these compounds include halogenation of propane 1,1,2,3-tetracarboxylic acid or its salts and/or the tetraester of the acid with subsequent formation of isocitric acid, alloisocitric acid and their lactones under specified pH conditions.

REFERENCES:
gawron, et al., JACS 80: 5856 (1958).
Pucher, et al., J. Biol. Chem. 163: 169-184 (1946).

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