51149-08-7, 3,6-Dichloropyridazine-4-carboxylic acid is a pyridazine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
EXAMPLE 53-{6-Bromo-2-fluoro-3-[2-(1H-pyrazolo[3,4-c]pyridazin-3-yl)-ethyl]-phenoxy}-5-chloro-benzonitrile (I-5) Preparation of 3-(2,4-difluoro-phenoxy)-pyridazine-4-carboxylic acid (30b)step 1-To a solution of 28a (7.5 g, 38.9 mmol, Aldrich) in DCM (30 mL) and MeOH (10 mL) cooled to 0 C. was added slowly via pipette, a solution of (trimethylsilyl)diazomethane (2.0 M in hexane) until a persistent yellow color is observed. After addition was complete, the solvents were removed in vacuo. The crude product was purified by SiO2 chromatography eluting with an EtOAc/hexane gradient (10 to 25% EtOAc) to afford 3.89 g (86%) of 28b as a brown oil that solidifies on standing.
The synthetic route of 51149-08-7 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; Roche Palo Alto LLC; US2008/293664; (2008); A1;,
Pyridazine – Wikipedia
Pyridazine | C4H4N2 – PubChem