C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/315.3
C07D 231/12 (2006.01)
Patent
CA 2018206
Pyrazole and its derivatives are prepared by dehydrogenating 2-pyrazoline or its derivatives by a process in which the reaction is carried out using sulfuric acid in the presence of iodine or of an iodine compound at from 50 to 250°C.
Fretschner Erich
Merkle Hans Rupert
Basf Aktiengesellschaft
Fretschner Erich
Merkle Hans Rupert
Robic
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