Title:
IMPROVED METHOD FOR PRODUCING SYMMETRICAL ANHYDRIDES
Document Type and Number:
WIPO Patent Application WO2001028969
Kind Code:
A3
Abstract:
A symmetrical anhydride of formula (I) is produced by reacting a mixed anhydride (II) with a carboxylic acid (III), R<1> being alkyl, alkenyl, aryl, alkylaryl, aralkyl; R<2> being alkyl in C1-C40, alkenyl in C1-C40, aryl, aryl-(alkyl in C1-C40) and (alkyl en C1-C40)-aryl.
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Inventors:
PAUL JEAN-MICHEL (FR)
FABIS FREDERIC (FR)
RAULT SYLVAIN (FR)
FABIS FREDERIC (FR)
RAULT SYLVAIN (FR)
Application Number:
PCT/FR2000/002826
Publication Date:
September 26, 2002
Filing Date:
October 11, 2000
Export Citation:
Assignee:
ATOFINA (FR)
PAUL JEAN-MICHEL (FR)
FABIS FREDERIC (FR)
RAULT SYLVAIN (FR)
PAUL JEAN-MICHEL (FR)
FABIS FREDERIC (FR)
RAULT SYLVAIN (FR)
International Classes:
C07B61/00; C07C51/56; C07C57/04; (IPC1-7): C07C51/567; C07C57/04
Foreign References:
| FR2592040A1 | 1987-06-26 | |||
| FR2774375A1 | 1999-08-06 |
Other References:
S. KIM: "A simple and mild esterification method for carboxylic acids using mixed carboxylic-carbonic anhydrides", JOURNAL OF ORGANIC CHEMISTRY, vol. 50, no. 5, 1985, EASTON US, pages 560 - 565, XP002141427
J. S. NELSON: "Symmetrical anhydrides of hydroxy acids", JOURNAL OF ORGANIC CHEMISTRY, vol. 28, July 1963 (1963-07-01), EASTON US, pages 1905 - 1907, XP002141428
J. S. NELSON: "Symmetrical anhydrides of hydroxy acids", JOURNAL OF ORGANIC CHEMISTRY, vol. 28, July 1963 (1963-07-01), EASTON US, pages 1905 - 1907, XP002141428
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