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HRID 56843作成日:2026年10月26日

2-Bromo-4-chloro-1-(difluoromethoxy)benzene → 4-[5-Chloro-2-(difluoromethoxy)phenyl]-2,5-dimethoxypyridine

https://huagongshe.com/reaction/56843

反応式

関与物質

役割名称HCID仕込み量
反応物2-Bromo-4-chloro-1-(difluoromethoxy)benzeneHCID 46311537—
反応物2,5-Dimethoxypyridine-4-boronic acidHCID 74890663—
生成物4-[5-Chloro-2-(difluoromethoxy)phenyl]-2,5-dimethoxypyridineHCID 117604904—

反応手順

417 mg (2.19 mmol, 1.2 eq.) of 2,5-dimethoxypyridin-4-ylboronic acid and 494 mg (1.82 mmol) of 2-bromo-4-chlorophenyl difluoromethyl ether in the presence of [1,1-bis(diphenylphosphino)ferrocene]palladium(II) chloride/dichloromethane monoadduct were reacted according to General Method 2A. The crude product was purified by flash chromatography (KP-SIL, petroleum ether/ethyl acetate 15-20%). Yield: 170 mg (purity 90%, 27% of theory)

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US09434690B2
出典データセットuspto-grants-2016_09
ORD IDord-b32853877264485fa2c7fb370be08afb
出典メモuspto-grants-2016_09