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(1-Bromoethyl)benzene → 6-Bromo-2-(1-phenylethyl)-isoquinolin-1-one

HRID 1037618
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HRID 1037618 반응식
[Br:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[C:8]([OH:12])=[N:7][CH:6]=[CH:5]2.Br[CH:14]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[CH3:15].[OH-].[Na+]>[Br-].C([N+](CCCC)(CCCC)CCCC)CCC.C1(C)C=CC=CC=1.C(OCC)C>[Br:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[C:8](=[O:12])[N:7]([CH:14]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[CH3:15])[CH:6]=[CH:5]2
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참가 물질

7

반응물 3

HCID 11454(1-Bromoethyl)benzeneHCID 14798Sodium HydroxideHCID 178517609HCID 178517609, 화합물

생성물 1

HCID 672849966-Bromo-2-(1-phenylethyl)-isoquinolin-1-one수율 100%

시약·촉매·용매 3

HCID 74236Tetrabutylammonium Bromide촉매HCID 1140Toluene
용매
HCID 3283Diethyl Ether용매

반응 조건

온도
70 °C

실험 절차

6-Bromo-1-hydroxyisoquinoline (150 mg, 0.67 mmol, 1.0 equiv), tetrabutylammonium bromide (25 mg, 0.07 mmol, 0.1 equiv), and 1-bromoethylbenzene (160 uL, 0.8 mmol, 1.2 equiv) were combined in toluene (7 mL) and treated with 50% aq. NaOH (2 mL) and the resulting mixture was stirred rapidly while heating to 70° C. After additional stirring for 14 hours, the mixture was diluted with diethyl ether and washed with water and brine. The organic phase was dried over Na2SO4. Addition of silica gel, concentration, and purification of the residue using flash silica gel chromatography (gradient 2→12% ethyl acetate/hexanes) gave 6-bromo-2-(1-phenylethyl)-isoquinolin-1-one (227 mg, 0.67 mmol, quant.) as a yellowish oil. This isoquinolinone (220 mg, 0.67 mmol) was converted, via Methods 1 and 2, to compound 4 (109 mg, 56%) and isolated as a white solid. [M−H]−=292.1 m/z. Activity: B

후처리

  1. stirringAfter additional stirring for 14 hours
  2. washwashed with water and brine
  3. dry with materialThe organic phase was dried over Na2SO4
  4. additionAddition of silica gel, concentration, and purification of the residue

출처 및 근거

ORD 기록
ord-8fdd81ce166f4d3282a00cec1caa2c74
출처 데이터셋
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08546564B2

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