C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/329.4
C07D 333/38 (2006.01)
Patent
CA 1333177
Process for the preparation of 5-chloro-3-chlorosul- phonyl-2-thiophenecarboxylic acid esters by chlorination in the presence of activated iron.
596140
Nycomed Danmark A/s
Riches Mckenzie & Herbert Llp
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