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2-Methyl-3-butyn-2-ol → 4-Dimethylamino-9-(3-hydroxy-3-methyl-but-1-ynyl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-2-carboxylic acid methyl ester

HRID 575105
ノート
印刷プレビュー

反応式

HRID 575105 の反応式
[CH3:1][O:2][C:3]([C:5]1[S:6][C:7]2[CH:8]([N:20]([CH3:22])[CH3:21])[CH2:9][O:10][C:11]3[CH:18]=[CH:17][C:16](Br)=[CH:15][C:12]=3[C:13]=2[N:14]=1)=[O:4].C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[CH3:42][C:43]([OH:47])([C:45]#[CH:46])[CH3:44]>CN(C=O)C.CC([O-])=O.CC([O-])=O.[Pd+2].[Cu]I>[CH3:1][O:2][C:3]([C:5]1[S:6][C:7]2[CH:8]([N:20]([CH3:22])[CH3:21])[CH2:9][O:10][C:11]3[CH:18]=[CH:17][C:16]([C:46]#[C:45][C:43]([OH:47])([CH3:44])[CH3:42])=[CH:15][C:12]=3[C:13]=2[N:14]=1)=[O:4]
参加物反応条件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 82582-Methyl-3-butyn-2-olHCID 11776TriphenylphosphineHCID 866931369-Bromo-4-dimethylamino-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-2-carboxylic acid methyl ester

生成物 1

HCID 866931374-Dimethylamino-9-(3-hydroxy-3-methyl-but-1-ynyl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-2-carboxylic acid methyl ester収率 41.7%

試薬・触媒・溶媒 3

HCID 24350
Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)
触媒
HCID 167845palladium(II) acetate触媒
HCID 6228Dimethylformamide溶媒

反応条件

温度
80 °C

実験手順

To a stirred mixture of 9-Bromo-4-dimethylamino-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-2-carboxylic acid methyl ester (120 mg, 0.31 mmol) in TEA (5 mL) and DMF (1 mL) were added Pd(OAc)2 (7.0 mg, 0.03 mmol), PPh3 (24.6 mg, 0.09 mmol), CuI (11.9 mg, 0.06 mmol), 2-methylbut-3-yn-2-ol (131.5 mg, 1.56 mmol). The reaction mixture was degassed with N2 and heated in autoclave at 80° C. overnight. Then the mixture was cooled to room temperature, and EtOAc was added. The mixture was filtered though Celite, and the filtrate was washed with saturated brine, dried over Na2SO4, filtered, concentrated in vacuo, and purified by flash column chromatography (silica gel, EtOAc in hexane from 10% to 20%) to afford 4-Dimethylamino-9-(3-hydroxy-3-methyl-but-1-ynyl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-2-carboxylic acid methyl ester (50 mg, 41%) as a light yellow solid. LC-MS (ESI & APCI): 387.5 (M+1).

後処理

  1. customThe reaction mixture was degassed with N2
  2. temperatureThen the mixture was cooled to room temperature
  3. additionEtOAc was added
  4. filtrationThe mixture was filtered though Celite
  5. washthe filtrate was washed with saturated brine
  6. dry with materialdried over Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. custompurified by flash column chromatography (silica gel, EtOAc in hexane from 10% to 20%)

出典と根拠

ORDレコード
ord-87e92b96b9fa468ebf207725be77c96f
出典データセット
uspto-grants-2015_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09034866B2

反応ノート

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