C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/264.7
C07D 237/24 (2006.01)
Patent
CA 1132566
Abstract of the Disclosure This invention relates to an improved one step process for the preparation of 1-aryl-1,4-dihydro-4- oxopyridazine carboxylic acid esters by reacting a hydrazone with an alcohol in the presence of a desiccant and an acid catalyst.
356291
Gowling Lafleur Henderson Llp
Rohm And Haas Company
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