Reference of 1105039-93-7, In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 1105039-93-7 as follows.
A solution of l-(4-methoxybenzyl)-lH-pyrazole-4- carboxylic acid (34.4 mmol, 8.00 g), oxalyl chloride (68.9 mmol, 5.92 mL) and a drop of DMF in DCM (80 mL) was stirred for 1 h at rt. After evaporation, the crude product was dissolved in DCM (30 mL) and was added at 0C to a solution of Nu,Omicron- dimethylhydroxylamine hydrochloride (103 mmol, 6.31 g) in DCM (100 mL), followed by Et3N (138 mmol, 19.2 mL). The reaction mixture was stirred for 1 h at rt. The reaction was quenched with a saturated aqueous solution of Na2C03 (300 mL) and the aqueous phase was extracted with DCM. The organic layer was dried over MgS04, filtered and concentrated to dryness to yield the title compound (33.8 mmol, 9.30 g, 98%) as a beige solid.UPLC-MS: RT = 0.72 min; MS m/z ES+= 276.
According to the analysis of related databases, 1105039-93-7, the application of this compound in the production field has become more and more popular.
Reference:
Patent; ADDEX PHARMA S.A.; JONES, Philip; MERCK SHARP & DOHME CORP.; TANG, Lam; BOLEA, Christelle; CELANIRE, Sylvain; LIVERTON, Nigel, J.; WO2012/9001; (2012); A2;,
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