Phase managed organic synthesis 3. Symmetrical anhydrides from carboxylic acids via polymer assisted reaction. - Fife, W.K.; Zhang, Z.-d. (Elsevier)
Symmetrical anhydrides are produced quickly and in high yield by treating mixtures of a carboxylic acid and one-half equivalent thionyl chloride in dichloromethane with a solid-state copolymer of 4-vinylpyridine. This conversion is accomplished equally well in batch or column mode.
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Keywords: V