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In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 50638-47-6, name is 4-Bromo-2-chloro-1-methoxybenzene belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. COA of Formula: C7H6BrClO

To a 5 ml of toluene solution containing 0.20 g of 3 (S) -aminopyrrolidine-1-carboxylic acid tert-butyl ester (1.1 mmol) and 0.238 g of 2-chloro-3-bromoanisole (1.1 mmol) were added 67.0 mg of BINAP (0.11 mmol), 24 mg of tris (dibenzylideneacetone) dipalladium (0.027 mmol) and 144 mg of sodium tert-butoxide (1.5 mmol). The mixture was heated under reflux under a nitrogen atmosphere at 100,C for one hour. After cooling to room temperature, the reaction solution was filtered EPO using Celite. The filtrate was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (n-hexane : ethyl acetate = 10 : 1 ? 3 : 1) . The purified product was concentrated to dryness under reduced pressure to thereby obtain 0.28 g of light yellow amorphous solid 3 (S) – (3-chloro-4-methoxyphenylamino)pyrrolidine-l-carboxylic acid tert-butyl ester. 1H-NMR(CDCl3) deltappm: 1.47(9H,s), 1.80-1.90 (IH,m) , 2.10-2.20 (lH,m) , 3.10-3.25 (IH,m) , 3.38-3.75(3H,m), 3.83(3H,s), 3.92-3.96 (IH,m) , 6.47 (IH,dd, J=2.8Hz, J=8.8Hz), 6.67 (IH, d, J=2.8Hz) , 6.81 (IH, d, J=8.8Hz) .

The synthetic route of 50638-47-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; OTSUKA PHARMACEUTICAL CO., LTD.; WO2006/121218; (2006); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics