Process for the acylation of halo- or trihalomethylbenzenes

Details Process for the acylation of halo- or trihalomethylbenzenes Process for the acylation of halo- or trihalomethylbenzenes

1982-06-28

1984-06-12

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568322, 568323, 562460, 562461, 562463, 562459, 260465D, 564426, 564430, 564442, C07C 4546

Patent

active

044543506

ABSTRACT:
A process for the acylation of halo- or trihalomethylbenzenes, wherein a halo- or trihalomethylbenzene is reacted with a carboxylic acid, a precursor or a derivative thereof in the presence of boron trifluoride in an amount such that the absolute pressure of the boron trifluoride within the reaction vessel exceeds 1 bar, and in the presence of hydrofluoric acid as a solvent. The resultant products are useful as intermediates in the synthesis of compounds having a phytosanitary (e.g., herbicidal) or pharmaceutical activity.

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