Water → 7-Bromo-2-chloromethylimidazo[1,2-a]pyridine

HRID 1943996노트

반응식

HRID 1943996 반응식
[Br:1][C:2]1[CH:7]=[CH:6][N:5]2[CH:8]=[C:9]([CH2:11]O)[N:10]=[C:4]2[CH:3]=1.S(Cl)([Cl:15])=O.O.C([O-])(O)=O.[Na+]>ClCCl>[Br:1][C:2]1[CH:7]=[CH:6][N:5]2[CH:8]=[C:9]([CH2:11][Cl:15])[N:10]=[C:4]2[CH:3]=1

참가 물질

6

반응물 4

HCID 962WaterHCID 24386Thionyl ChlorideHCID 516892Sodium BicarbonateHCID 58103977(7-Bromoimidazo[1,2-a]pyridin-2-yl)methanol

생성물 1

HCID 441183127-Bromo-2-chloromethylimidazo[1,2-a]pyridine수율 67.9%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a solution of 110 mg (0.48 mmol) of (7-bromoimidazo[1,2-a]pyrid-2yl)methanol, prepared according to the protocol described in step 8.2, in 8 mL of anhydrous dichloromethane, stirred at room temperature under an inert atmosphere, is added 0.03 mL (0.53 mmol) of thionyl chloride. The reaction mixture is stirred at room temperature for 4 hours, hydrolysed at 0° C. by successive addition of 3 mL of cold water and 5 mL of saturated aqueous NaHCO3 solution and then extracted with three times 10 mL of dichloromethane. The combined organic phases are dried over sodium sulfate and then concentrated under reduced pressure. 80 mg of the expected product are obtained.

후처리

  1. extractionextracted with three times 10 mL of dichloromethane
  2. dry with materialThe combined organic phases are dried over sodium sulfate
  3. concentrationconcentrated under reduced pressure

출처 및 근거

ORD 기록
ord-eb13e4c6d03f42799af95feaa15bb9a3
출처 데이터셋
uspto-grants-2013_03
특허 번호
US08394820B2

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