Process for the production of malonic acid anhydride

Details Process for the production of malonic acid anhydride Process for the production of malonic acid anhydride

1992-01-21

1993-05-11

Tsang, Cecilia

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

560176, 560180, 560204, C07D30500, C07C 6708, C07C 6966

Patent

active

052102220

ABSTRACT:
A process, which is harmless with respect to safety, for the production of malonic acid anhydride. For this purpose, diketene is ozonized in the presence of a suitable carbonyl compound. Malonic acid anhydride is a highly reactive intermediate product for the synthesis of numerous active ingredients for, e.g., pharmaceutical agents, pesticides or dyes.

REFERENCES:
patent: 4251447 (1981-02-01), Perrin
patent: 4360691 (1982-11-01), Perrin
Lapalme et al., Canadian Journal Of Chem., vol. 57, (1979), pp. 3272 to 3277.

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