Carbonates carrying cyclic carbonate groups

Details Carbonates carrying cyclic carbonate groups Carbonates carrying cyclic carbonate groups

1980-04-14

1983-12-27

Milestone, Norma S.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31736

Patent

active

044232357

ABSTRACT:
The invention relates to new industrial products of the general formula ##STR1## a process for the manufacture of these products and their application in hydrometallurgy.
According to the invention, R is in particular an alkyl, cycloalkyl, aryl, aralkyl, carboxylate, polyoxyethylene, polyester or polycarbonate group. The process consists in reacting an alcohol or a polyol, ROH, with 2,3-dioxycarbonylpropyl chloroformate, at between -10.degree. and +20.degree. C., in the presence of an acid acceptor.
Application: the compounds according to the invention are extraction agents for hydrometallurgy, which can be used in dilute solution.

REFERENCES:
patent: 2446145 (1948-07-01), Strain
patent: 3072613 (1963-01-01), Whelan et al.
patent: 3542841 (1970-11-01), Moore et al.
patent: 3671563 (1972-06-01), Pfeiffer et al.
patent: 3912801 (1975-10-01), Stephens et al.

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