Preparation of aliphatic anhydrides and alkylidene dicarboxylate

Details Preparation of aliphatic anhydrides and alkylidene dicarboxylate Preparation of aliphatic anhydrides and alkylidene dicarboxylate

1982-05-28

1987-03-31

Garner, Vivian

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260398, 260546, 260549, 560224, 560240, 560263, 560264, 568397, C07C 5109, C07C 6724, C07C 69003, C07C 6928, C07C 6954

Patent

active

046541748

ABSTRACT:
The invention disclosed herein is a process for preparing aliphatic anhydrides comprising contacting a divinyl ether with carboxylic acid in the presence of a catalytic amount of a strong acid. The invention is further a process for preparing alkylidene dicarboxylates, which are intermediates in the above preparation of aliphatic anhydride.

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Melick et al., "Vinyl Orthoformates and Vinyl Acetals" Recueil, 92, 775-787 (1973).
Machinskaya et al., "The reaction of Aldehydes and Ketones with Acetic Anhydride", J. Gen. Chem., USSR 23, 791-3 (1953) Eng. Trans.
Gershtein, "Transformation of Vinyl Ethers. III. Reaction of Vinyl Ethers with Organic Acids", Zhur. Obshchei Khim. (J. Gen. Chem.) 18, 1989-99 (1948).

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