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4700074 
Journal Article 
Facile and Selective Synthesis of 2,3,4,5-Tetrafluorobenzoyl Chloride with Triphosgene 
Yang, J; Han, X; Zhou, L; Xiong, C 
2011 
Yes 
Asian Journal of Chemistry
ISSN: 0970-7077
EISSN: 0975-427X 
23 
4 
1615-1617 
WOS:000288465100045 
The method of 2,3,4,5-tetrafluorobenzoyl chloride synthesis with triphosgene was studied. High catalytic activity and the yield of carbonyl chloride on the chlorination of acid were achieved. The yield could be reached 95 mol % when the catalyst (DMF) was 5 mol % of acid, 1,2-dichloroethane used as solvent, n(triphosgene):n(acid) value 0.37:1.00 and the reaction was carried out at 353 K for 4 h. 
2,3,4,5-Tetrafluorobenzoic acid; 2,3,4,5-Tetrafluorobenzoyl chloride; Triphosgene