C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/329.6
C07D 333/28 (2006.01)
Patent
CA 1278301
ABSTRACT OF THE DISCLOSURE: Process for preparing 2,3-dichlorothiophene The invention relates to the preparation of 2,3-dichloro- thiophene by chlorinating 3-chlorothiophene or by isomer- izing 2-chlorothiophene to 3-chlorothiophene and subse- quently chlorinating the latter. The isomerization is generally carried out by means of a zeolite catalyst.
520752
Leupold Ernst I.
Litterer Heinz
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
Leupold Ernst I.
Litterer Heinz
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