Process for the preparation of pyrazole

Details Process for the preparation of pyrazole Process for the preparation of pyrazole

C - Chemistry, Metallurgy

07

D

260/315.3

C07D 231/12 (2006.01) C07D 231/06 (2006.01) C07D 521/00 (2006.01)

Patent

CA 1161443

A B S T R A C T O F T H E D I S C L O S U R E PROCESS FOR THE PREPARATION OF PYRAZOLE Process for the preparation of pyrazole by reacting hydrazine hydrate with acrolein in an aqueous-organic medium at a temperature between 20°C and 80°C, and oxidising the 2-pyrazoline formed, of the formula Image (I), either directly, or where appropriate after first being isolated, with chlorine or an alkali metal hypochlorite or an alkaline earth metal hypochlorite in water or an aqueous-organic medium at a temperature between 0°C and 60°C, if necessary in the presence of a catalyst. Le A 20 593

386186

Affiliated with

Also associated with

Rating

Process for the preparation of pyrazole does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of pyrazole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of pyrazole will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-408236