Potassium Carbonate → HCID 66815652、化合物

HRID 2367926ノート

反応式

HRID 2367926 の反応式
[OH:1][C:2]1[CH:3]=[C:4]([C:8]2[N:13]=[C:12]([C:14]([O:16][CH3:17])=[O:15])[CH:11]=[CH:10][CH:9]=2)[CH:5]=[CH:6][CH:7]=1.Br[CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][O:25][CH:26]1[CH2:31][CH2:30][CH2:29][CH2:28][O:27]1.C([O-])([O-])=O.[K+].[K+]>CN(C=O)C>[O:27]1[CH2:28][CH2:29][CH2:30][CH2:31][CH:26]1[O:25][CH2:24][CH2:23][CH2:22][CH2:21][CH2:20][CH2:19][O:1][C:2]1[CH:3]=[C:4]([C:8]2[N:13]=[C:12]([C:14]([O:16][CH3:17])=[O:15])[CH:11]=[CH:10][CH:9]=2)[CH:5]=[CH:6][CH:7]=1

参加物

5

反応物 3

HCID 11430Potassium CarbonateHCID 1038602-[(6-bromohexyl)oxy]tetrahydro-2H-pyranHCID 66820850Methyl 6-(3'-hydroxyphenyl)-pyridine-2-carboxylate

生成物 1

HCID 66815652HCID 66815652、化合物収率 66%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
70 °C

実験手順

To a solution of methyl 6-(3′-hydroxyphenyl)-pyridine-2-carboxylate (7) (250 mg, 1.1 mmol, 1.0 eq.) and 2-(6′-bromohexyloxy)tetrahydropyran (420 mg, 0.36 mL, 1.6 mmol, 1.5 eq.) in DMF (3 mL) was added K2CO3 (460 mg, 3.3 mmol, 3.0 eq.). The mixture was stirred vigorously overnight at 70° C. and then concentrated in vacuo. The residue was dissolved in ethyl acetate, washed with NaH2PO4 buffer (pH 5, 1M) and brine, dried over Na2SO4 and concentrated in vacuo. The crude product was purified by flash chromatography on silica using ethyl acetate:hexanes to provide 300 mg (65%) of 12. TLC Rf=0.5 (ethyl acetate:hexanes 1:1), MS m/z 330 (fragment after elimination of the THP group) [M+H]+

後処理

  1. concentrationconcentrated in vacuo
  2. dissolutionThe residue was dissolved in ethyl acetate
  3. washwashed with NaH2PO4 buffer (pH 5, 1M) and brine
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo
  6. customThe crude product was purified by flash chromatography on silica

出典と根拠

ORDレコード
ord-86a76cce3e1b438c802cb1a27b5f082a
出典データセット
uspto-grants-2014_04
特許番号
US08703700B2

反応ノート

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