With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.657408-07-6,Dicyclohexyl(2′,6′-dimethoxy-[1,1′-biphenyl]-2-yl)phosphine,as a common compound, the synthetic route is as follows.,657408-07-6
Step 1. The 500 mL round-bottom flask, equipped with magnetic stirrer and reflux condenser was charged with 5-chloro-2-methoxyphenylboronic acid (9.78 g, 52 mmol), 3-amino-2-chloropyridine (7.00 g, 55 mmol), 2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl (S-Phos, 0.43 g, 2 mol %), palladium (II) acetate (112 mg, 1 mol %), potassium carbonate (21.7 g, 157 mmol), 180 mL of acetonitrile and 20 ml of water. The flask was filled with nitrogen and heated to reflux under nitrogen atmosphere for 24 hours. Then the reaction was cooled down to room temperature, diluted with 500 mL of water and extracted with ethyl acetate (5*40 mL). Organic fractions were combined, dried over sodium sulfate, filtered and evaporated. The residue was subjected to column chromatography on silica gel with eluent hexane/ethyl acetate gradient mixture, providing 2-(5-chloro-2-methoxyphenyl)pyridin-3-amine as white crystals (9.5 g, NMR confirmed the structure).
The synthetic route of 657408-07-6 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; Universal Display Corporation; US2009/134784; (2009); A1;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate