Dioxydiphthalic acid esters

Details Dioxydiphthalic acid esters Dioxydiphthalic acid esters

1991-10-04

1992-11-24

Raymond, Richard L.

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

Organic compounds

Carboxylic acid esters

549359, 562474, C07C 63331, C07C 6980

Patent

active

051664046

ABSTRACT:
Oxydiphthalic acid esters of the formula ##STR1## where Z is H or alkyl, and X is halo, X' is H or halo, or X and X' together represent an oxygen atom; are prepared by the esterification reaction of the corresponding halo-oxydiphthalic anhydride or dioxydiphthalic anhydride with an alkanol.

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Marvel, C. S. et al, J. Am. Chem. Sco., 80, 1197 (1958).
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Tilika et al., Synthesis of Carboxylic Acids of Aromatic Sulfides Latv. PSR Zinat. Akad. Vestis, Kim. Ser.(2), 201-4, 1982 (CA 97(7):55412U.
Pebalk et al, Spin Density Distribution . . . Dikl. Akad. Nauk, SSR, 244(5), 1169-73 (Phys. Chem.) 1979 (CA 90(23):186029c.
Pebalk et al, Electron-acceptor Properties of Aromatic Dianhydrides Dokl. Akad. Nauk, SSR, 236(6), 1379-82 (Chem.) 1977 (CA 88(19):135960a.
Erglis et al, (USSR Patent No. 395,358) CA 89(9):48007m (1974).
Govindachari et al, Chemical Abstracts, vol. 67 (1967) 54088m.

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