Production of malonic anhydrides and derivatives thereof

Details Production of malonic anhydrides and derivatives thereof Production of malonic anhydrides and derivatives thereof

1980-08-25

1982-11-23

Love, Ethel G.

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

Organic compounds

Carboxylic acid esters

560 77, 560 82, 560204, 562483, 564144, C07C 6708, C07C 51083, C07C10314

Patent

active

043606911

ABSTRACT:
Malonic anhydride and substituted malonic anhydrides are prepared by ozonolysis of the enol-lactone dimers of ketenes. The resulting malonic anhydrides can be hydrolyzed with water to form the corresponding acid, reacted with an alcohol to yield the monoester, or reacted with an amine to yield the monoamide.

REFERENCES:
patent: 3462535 (1969-08-01), Loev et al.
patent: 3758574 (1973-09-01), Melton et al.
patent: 4018815 (1977-04-01), Vogt et al.
patent: 4256908 (1981-03-01), Nishimura et al.
Moriarty et al., Journ. Amer. Chem. Soc., 100:17, pp. 5582-5584.
Cram and Hammond, Organic Chemistry, 2nd Edition, 1964.

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