C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/264.7
C07D 237/24 (2006.01)
Patent
CA 1316536
PS 34905 ABSTRACT PYRIDAZINONE MANUFACTURE Improved method for the manufacture of plant regulant pyridazine-4-one carboxylic acids, which comprises the step of diazo-coupling a benzenediazonium salt with a dialkyl 3-oxoglutarate in the presence of water and a dispersing agent, preferably at a temperature not greater than 5°C.
611064
Avecia Limited
Marks & Clerk
Yelland Michael
LandOfFree
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