1-Bromo-2-methylpropane → HCID 54578469、化合物

HRID 2171199ノート

反応式

HRID 2171199 の反応式
[CH:1]1([CH2:4][O:5][C:6]2[C:7]([OH:24])=[C:8]([C:14]3[CH:15]=[C:16]4[C:20](=[CH:21][CH:22]=3)[C:19](=[O:23])[O:18][CH2:17]4)[CH:9]=[CH:10][C:11]=2[O:12][CH3:13])[CH2:3][CH2:2]1.C(=O)([O-])[O-].[K+].[K+].[CH2:31](Br)[CH:32]([CH3:34])[CH3:33]>C(#N)C>[CH:1]1([CH2:4][O:5][C:6]2[C:7]([O:24][CH2:31][CH:32]([CH3:34])[CH3:33])=[C:8]([C:14]3[CH:15]=[C:16]4[C:20](=[CH:21][CH:22]=3)[C:19](=[O:23])[O:18][CH2:17]4)[CH:9]=[CH:10][C:11]=2[O:12][CH3:13])[CH2:3][CH2:2]1

参加物

5

反応物 3

HCID 65551-Bromo-2-methylpropaneHCID 11430Potassium CarbonateHCID 67465720HCID 67465720、化合物

生成物 1

HCID 54578469HCID 54578469、化合物収率 21.3%

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒

反応条件

温度
70 °C

実験手順

To a stirring solution of 5-(3-(cyclopropylmethoxy)-2-hydroxy-4-methoxyphenyl) isobenzofuran-1(3H)-one (80 mg, 0.246 mmol) in acetonitrile (10 mL) was added potassium carbonate (102 mg, 0.745 mmol) and isobutylbromide (102 mg, 0.745 mmol) and the resultant reaction mixture was heated to 70° C. for 16 h. The reaction mixture was cooled to RT and filtered through celite. The filtrate was concentrated under reduced pressure and the residue was purified by column chromatography (silica gel, 0-20% ethyl acetate in pet ether) to afford the title compound as a solid (20 mg, 21%).

後処理

  1. customthe resultant reaction mixture
  2. temperatureThe reaction mixture was cooled to RT
  3. filtrationfiltered through celite
  4. concentrationThe filtrate was concentrated under reduced pressure
  5. customthe residue was purified by column chromatography (silica gel, 0-20% ethyl acetate in pet ether)

出典と根拠

ORDレコード
ord-290df39faa8c420d8964bffe770a1e2f
出典データセット
uspto-grants-2015_06
特許番号
US09051290B2

反応ノート

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