Carbon tetrabromide → Methyl 2''-(bromomethyl)-4'-methoxy-2-methyl-4''-(trifluoromethyl)-1,1':3',1''-terphenyl-4-carboxylate

HRID 537985노트

반응식

HRID 537985 반응식
O[CH2:2][C:3]1[CH:8]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:6]=[CH:5][C:4]=1[C:13]1[CH:14]=[C:15]([C:21]2[CH:26]=[CH:25][C:24]([C:27]([O:29][CH3:30])=[O:28])=[CH:23][C:22]=2[CH3:31])[CH:16]=[CH:17][C:18]=1[O:19][CH3:20].C(Br)(Br)(Br)[Br:33].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C(Cl)Cl>[Br:33][CH2:2][C:3]1[CH:8]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:6]=[CH:5][C:4]=1[C:13]1[CH:14]=[C:15]([C:21]2[CH:26]=[CH:25][C:24]([C:27]([O:29][CH3:30])=[O:28])=[CH:23][C:22]=2[CH3:31])[CH:16]=[CH:17][C:18]=1[O:19][CH3:20]

참가 물질

5

반응물 3

HCID 11205Carbon tetrabromideHCID 11776TriphenylphosphineHCID 67066009Methyl 2''-(hydroxymethyl)-4'-methoxy-2-methyl-4''-(trifluoromethyl)-1,1':3', 1''-terphenyl-4-carboxylate

생성물 1

HCID 57544358Methyl 2''-(bromomethyl)-4'-methoxy-2-methyl-4''-(trifluoromethyl)-1,1':3',1''-terphenyl-4-carboxylate

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

To a 0° C. solution of methyl 2″-(hydroxymethyl)-4′-methoxy-2-methyl-4″-(trifluoromethyl)-1,1′:3′,1″-terphenyl-4-carboxylate (1.500 g, 3.49 mmol) in CH2Cl2 (14 mL) was added CBr4 (2.429 g, 7.33 mmol), and then a solution of triphenyl phosphine (1.830 g, 6.98 mmol) in CH2Cl2 (15 mL). The solution was warmed to room temperature and stirred for twelve hours. The reaction was concentrated, and the residue was purified by flash chromatography on silica gel (0 to 25% EtOAc/hexanes) to afford methyl 2″-(bromomethyl)-4′-methoxy-2-methyl-4″-(trifluoromethyl)-1,1′:3′,1″-terphenyl-4-carboxylate. Rf=0.59 (50% EtOAc/hexanes). LCMS=494.8 (M+1)+. 1H NMR (CDCl3, 500 MHz), δ 7.95 (s, 1H), 7.89 (d, J=8.0 Hz, 1H), 7.80 (s, 1H), 7.59 (d, J=7.6 Hz, 1H), 7.40-7.33 (m, 3H), 7.21 (d, J=2.3 Hz, 1H), 7.06 (d, J=8.5 Hz, 1H), 4.44-4.39 (m, 2H), 3.93 (s, 3H), 3.82 (s, 3H), 2.37 (s, 3H).

후처리

  1. concentrationThe reaction was concentrated
  2. customthe residue was purified by flash chromatography on silica gel (0 to 25% EtOAc/hexanes)

출처 및 근거

ORD 기록
ord-9fb780ea86f34cd59d38e21995f801a6
출처 데이터셋
uspto-grants-2014_10
특허 번호
US08865707B2

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