Process for the preparation of 2,3,4,5-tetrafluorobenzoyl acetat

Details Process for the preparation of 2,3,4,5-tetrafluorobenzoyl acetat Process for the preparation of 2,3,4,5-tetrafluorobenzoyl acetat

1986-04-01

1987-08-25

Lone, Werren B.

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

Organic compounds

Carboxylic acid esters

562459, 562496, C07C 6714

Patent

active

046894233

ABSTRACT:
An improved process for the preparation of methyl 2,3,4,5-tetrafluorobenzoylacetate is described. The process is for intermediates that lead to trifluoroquinolinic acids which in turn are used to produce antibacterial agents of the difluoro quinolinecarboxylic acid type. The process runs at room temperature, uses a safe and inexpensive base, and can be conveniently scaled up for manufacturing purposes.

REFERENCES:
Wierenga et al., J. Org. Chem., vol. 44, No. 2, pp. 310-311, (1979).
Yakobson et al., Thurnal Obshchei Khimii, vol. 36, No. 1, pp. 139-142, Jan. 1966.

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