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Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
HRID 363190생성일: 2026년 10월 27일

Ammonium Hydroxide → 2-(3-Trifluoromethoxyphenyl)-5-methylpyridine

https://huagongshe.com/reaction/363190

반응식

참여 물질

역할이름HCID투입량
반응물Ammonium HydroxideHCID 14923—
반응물1-Bromo-3-(trifluoromethoxy)benzeneHCID 519964—
반응물2-Bromo-5-methylpyridineHCID 564216—
반응물HCID 178418306HCID 178418306—
촉매ZincchlorideHCID 3007855—
촉매bis(triphenylphosphine) NickelHCID 57357981—
용매Diethyl EtherHCID 3283—
용매PentaneHCID 8003—
용매TetrahydrofuranHCID 8028—
생성물2-(3-Trifluoromethoxyphenyl)-5-methylpyridineHCID 54520146—

반응 조건

온도-78 °C

반응 단계

To a solution of 3-bromotrifluoromethoxybenzene (0.590 mL, 4.00 mmol) in THF (12 mL) at -78° C. was added t-butyl lithium (4.71 mL, of a 1.7M solution in pentane, 8.00 mmol. After 10 minutes zinc chloride(4.0 mL, of a 1M solution in diethylether, 4.00 mmol) was added. The reaction was stirred for 10 minutes at -78° C. and then allowed to warm to 0° C. and stirred for 30 minutes. This solution was added via cannula to a solution of 2-bromo-5-methyl pyridine and bis(triphenylphosphine) Nickel II chloride. The reaction stirred for 1 hour at 0° C. and then at ambient temperature for a furthur 1 hour. Saturated ammonium hydroxide solution (3 mL) was added and the mixture stirred until homogenous, extracted with Et2O and the organic extracts washed with saturated brine, dried (MgSO4) and evaporated in vacuo. The residue was chromatographed (Silica gel, 25-50% CH2Cl2 in hexanes).

출처 및 근거

DOI10.6084/m9.figshare.5104873.v1
특허 번호US05872136
출처 데이터셋uspto-grants-1999_02
ORD IDord-89439644dad44269915f26bafa0e3617
출처 메모uspto-grants-1999_02