1-(Bromomethyl)-2-(trifluoromethyl)benzene → 9-[(2-trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

HRID 51375

반응식

HRID 51375 반응식
[C:1]([C:5]1[CH:17]=[CH:16][CH:15]=[C:14]2[C:6]=1[C:7]1[C:8](=[O:18])[CH2:9][CH2:10][CH2:11][C:12]=1[NH:13]2)([O:3][CH3:4])=[O:2].[F:19][C:20]([F:30])([F:29])[C:21]1[CH:28]=[CH:27][CH:26]=[CH:25][C:22]=1[CH2:23]Br>CN(C=O)C.C(OCC)(=O)C>[F:19][C:20]([F:29])([F:30])[C:21]1[CH:28]=[CH:27][CH:26]=[CH:25][C:22]=1[CH2:23][N:13]1[C:12]2[CH2:11][CH2:10][CH2:9][C:8](=[O:18])[C:7]=2[C:6]2[C:14]1=[CH:15][CH:16]=[CH:17][C:5]=2[C:1]([O:3][CH3:4])=[O:2]

참가 물질

5

반응물 2

HCID 1230571-(Bromomethyl)-2-(trifluoromethyl)benzeneHCID 11368514methyl 4-oxo-2,3,4,9-tetrahydro-1H-carbazole-5-carboxylate

생성물 1

HCID 227385969-[(2-trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one수율 83.5%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

40% Methanolic Triton B (2.18 mL, 4.8 mM) was slowly added dropwise to a solution of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (973 mg, 4.0 mM) in 10 mL of DMF at −10° C. After 30 minutes, 2-(trifluoromethyl)benzyl bromide (1.3 g, 5.2 mM) was added and the resultant mixture stirred at room temperature for 23 hours. The mixture was diluted with ethyl acetate, washed five times with H2O, once with saturated brine, dried over anhydrous magnesium sulfate, filtered, concentrated, and dried in vacuo to afford 1.34 g (83%) of the 9-[(2-trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one as a tan solid. 1H NMR (CDCl3) δ7.7 (d, 1H, J=8 Hz), 7.4-7.1 (m, 5H), 6.4 (d, 1H, J=8 Hz), 5.5 (s, 2H), 4.05 (s, 3H), 2.8 (t, 2H, J=6 Hz), 2.6 (t, 2H, J=6 Hz), and 2.2 (m, 2H). IR (KBr, cm−1) 1729 and 1656. MS (ES) m/e 402.

후처리

  1. washwashed five times with H2O
  2. dry with materialonce with saturated brine, dried over anhydrous magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customdried in vacuo

출처 및 근거

ORD 기록
ord-703959c9223a4e358d0546d485243aa9
출처 데이터셋
uspto-grants-2004_03
특허 번호
US06713645B1

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