| 摘要 |
<p>Process for preparing acid halides Acid halides of the formula (Rl, R2, R3)C - CO Hal are obtained by reacting alkyl halides of the formula (R1, R2, R3)C - Hal with carbon monoxide under a pressure of 5 to 1,000 bar and at a temperature of -20.degree.C to +100.degree.C in the presence of 0.001 to 0.3 mol of AlCl3 and/or FeCl3, if appropriate in the presence of a further Bronsted or Lewis acid, per mol of the alkyl halide. The process is carried out, if desired in the presence of a solvent which is customary for Friedel-Crafts or Friedel-Crafts-related reactions and, if appropriate in the presence of a hydrogen halide. The acid chloride can be isolated from the reaction mixture or further reacted.</p> |
