1156. ------.[I. G. Farbenindustrie, A. G. Alcohols] [Carboxylic Acids and Anhydrides.] German Patent Appl. I 74,732, no date (Cl. IV d-12 o). Auszüge deut. Patent-Anmeldungen, vol. 6, p. 217.

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Patent Abstracts

1156. ------.[I. G. Farbenindustrie, A. G. Alcohols] [Carboxylic Acids and Anhydrides.] German Patent Appl. I 74,732, no date (Cl. IV d-12 o). Auszüge deut. Patent-Anmeldungen, vol. 6, p. 217.

Carboxylic acids and anyhydrides are obtained by the reaction of CO and H₂O on olefins under pressure in the presence of halogen compounds together with carbonyl-forming metals as catalysts.