67322-86-5

Upstream product

• 1210-32-8 4-Chloro-5-hydrazino-2-phenyl-3(2H)-pyridazinone 
• 1698-53-9 4,5-dichloro-1-phenylpyridazin-6-one 

Downstream Products

• 67322-80-9 2-methyl-1,1,4-trioxo-1,2,3,4-tetrahydro-1λ⁶-benzo[e][1,2]thiazine-3-carboxylic acid 3-oxo-2-phenyl-2,3-dihydro-pyridazin-4-ylamide 

Relevant academic research and scientific papers

A novel and practical animation of 4,5-dichloropyridazin-3-ones via reduction with hydrazine hydrate

A novel and simple protocol: the direct amination of 4,5-dichloropyridazinones can be carried out in hydrazine hydrate under mild conditions. 4-Chloro-5-hydrazinopyridazin-3-ones serves as a key intermediate in this reduction.

IMIDAZOPYRIDAZINE COMPOUNDS USEFUL AS MODULATORS OF IL-12, IL-23 AND/OR IFN ALPHA RESPONSES

Compounds having the following formula (I), or a stereoisomer or pharmaceutically-acceptable salt thereof, where R1, R2, R3, R4, and R5 are as defined herein, are useful in the modulation of IL-12, IL-23 and/or IFNα, by acting on Tyk-2 to cause signal transduction inhibition.

An efficient and practical method for the synthesis of 1-(2,6- difluorobenzoyl)-3-(2-alkyl-3-oxopyridazin-4-yl)ureas as potential chitin synthesis inhibitors

A mild and efficient method for the synthesis of 4-amino-3(2H)- pyridazinones from their corresponding 4,5-dichloropyridazinones under microwave-assisted conditions is described. A series of novel chitin synthesis inhibitors, benzoylphenylureas containing