Preparation of polycarboxylic compounds

Details Preparation of polycarboxylic compounds Preparation of polycarboxylic compounds

1980-12-17

1983-12-13

Milestone, Norma S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

562595, C07D30732, C07C 5138

Patent

active

044206216

ABSTRACT:
Novel methods for preparing polycarboxylic compounds which are useful as metal sequestrants and food acidulants are disclosed. These compounds are aconitic acid and a mixture of aconitic acid, and the lactones of isocitric acid and alloisocitric acid. The compounds can be neutralized to the corresponding salts which, in turn, are metal sequestering agents. The novel methods include chlorination of propane-1,1,2,3-tetracarboxylic tetraesters.

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