Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic halides
Patent
1994-09-27
1996-02-20
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic halides
C07C 5158
Patent
active
054930545
ABSTRACT:
The subject of the present invention is a new catalytic system and a process for the synthesis of acid halides, especially from haloforms. This process for halogenating by means of a haloform is characterized by the use of a metal chloride, advantageously trivalent, as a catalyst, the solubility of which in the reaction mixture is at least equal to one millimole, preferably 1/100 mole per liter, and the metal chloride also being at least half, advantageously two-thirds and preferably three-quarters in the dissolved state.
REFERENCES:
patent: 1963748 (1934-06-01), Kyrides
patent: 2051096 (1936-08-01), Mares
patent: 4623491 (1986-11-01), Siegemund et al.
INPI Search Report dated Oct. 23, 1992.
Forat Gerard
Gilbert Laurent
Killos Paul J.
Rhone-Poulenc Chimie
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