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Potassium Hydroxide → 2-{[2-(benzyloxy)-4,6-dimethylpyridin-3-yl]methyl}-8-chloro-7-(difluoromethoxy)-3,4-dihydroisoquinolin-1(2H)-one

HRID 577478
ノート
印刷プレビュー

反応式

HRID 577478 の反応式
[CH2:1]([O:8][C:9]1[C:14]([CH2:15][N:16]2[CH2:25][CH2:24][C:23]3[C:18](=[C:19]([Cl:27])[C:20]([OH:26])=[CH:21][CH:22]=3)[C:17]2=[O:28])=[C:13]([CH3:29])[CH:12]=[C:11]([CH3:30])[N:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH-].[K+].Br[C:34](P(=O)(OCC)OCC)([F:36])[F:35]>CC#N.O.CCOC(C)=O.O>[CH2:1]([O:8][C:9]1[C:14]([CH2:15][N:16]2[CH2:25][CH2:24][C:23]3[C:18](=[C:19]([Cl:27])[C:20]([O:26][CH:34]([F:36])[F:35])=[CH:21][CH:22]=3)[C:17]2=[O:28])=[C:13]([CH3:29])[CH:12]=[C:11]([CH3:30])[N:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 3

HCID 14797Potassium HydroxideHCID 144101Bromodifluoromethyl diethylphosphonateHCID 867237042-{[2-(benzyloxy)-4,6-dimethylpyridin-3-yl]methyl}-8-chloro-7-hydroxy-3,4-dihydroisoquinolin-1(2H)-one

生成物 1

HCID 867237052-{[2-(benzyloxy)-4,6-dimethylpyridin-3-yl]methyl}-8-chloro-7-(difluoromethoxy)-3,4-dihydroisoquinolin-1(2H)-one収率 72%

試薬・触媒・溶媒 3

HCID 962
Water
溶媒
HCID 8857Ethyl Acetate溶媒
HCID 18373917Acetonitrile--water (1/1)溶媒

実験手順

To a solution of 2-{[2-(benzyloxy)-4,6-dimethylpyridin-3-yl]methyl}-8-chloro-7-hydroxy-3,4-dihydroisoquinolin-1(2H)-one (1h, 0.1 g, 0.237 mmol) and KOH (0.265 g, 4.74 mmol) in CH3CN/H2O (10 mL/1 mL) was added diethyl [bromo(difluoro)methyl]phosphonate (0.126 g, 0.474 mmol) at −78° C. under N2 atmosphere. The resulting mixture was allowed to warm to room temperature and stirred for 30 minutes. The mixture was diluted with EtOAc (20 mL) and H2O (5 mL). The organic layer was separated and the aqueous layer was extracted with EtOAc (2×10 mL). The organic layers were combined, washed with brine (10 mL), dried over Na2SO4, and concentrated under vacuum. The residue was purified by prep. TLC (petroleum ether/EtOAc, 4:1) to obtain 2-{[2-(benzyloxy)-4,6-dimethylpyridin-3-yl]methyl}-8-chloro-7-(difluoromethoxy)-3,4-dihydroisoquinolin-1(2H)-one (1i, 0.08 g, 72%) as a yellow oil.

後処理

  1. customThe organic layer was separated
  2. extractionthe aqueous layer was extracted with EtOAc (2×10 mL)
  3. washwashed with brine (10 mL)
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated under vacuum
  6. customThe residue was purified by prep

出典と根拠

ORDレコード
ord-610e96a60d7f4cba9a1d75ede5034e86
出典データセット
uspto-grants-2015_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09040515B2

反応ノート

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