Processes for preparing ortho-substituted benzoic acids

Details Processes for preparing ortho-substituted benzoic acids Processes for preparing ortho-substituted benzoic acids

1992-12-23

1994-08-02

Lee, Mary C.

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

Organic compounds

Carboxylic acids and salts thereof

562431, 562471, C07C 6306, C07C 5948

Patent

active

053347536

ABSTRACT:
A novel process for the synthesis of ortho-substituted benzoic acid by lithiating an unprotected benzoic acid and a number of novel orth-substituted benzoic acids are described.

REFERENCES:
patent: 4323692 (1982-04-01), Tanger
Snieckus, Chem. Rev. 90, 879-933 (1990).
Gschwend et al, in Organic Reactions, eds. W. G. Dauben et al, John Wiley & Sons, Inc., New York, vol. 26, Chapter 1, p. 69 (1979).
Yu et al, J. Chem. Soc. Perkin Trans. I, 2600-2601 (1991).
Carpenter et al, Tetrahedron Letters, vol. 26, No. 14, 1777-1780 (1985).
Meyers et al, Tetrahedron Letters, vol. 24, No. 45, 4935-4938 (1983).
CA 94 (19):156485p o-Benzoylbenzoic acids . . . podophyllotoxin. Parham et al., p. 618, 1981.
Parham et al., J. Org. Chem.., 46, 1057-1061, 1981, o-Benzoylbenzoic Acids . . . Podophyllotoxin.

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