C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 51/60 (2006.01)
Patent
CA 2507477
The invention relates to a novel process for preparing phthaloyl chloride (benzene-1,2- dicarbonyl chloride) by reacting phthalic anhydride with phosgene in the presence of a specific N,N-disubstituted formamide as a catalyst.
Fetherstonhaugh & Co.
Lanxess Deutschland Gmbh
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