Toluene → HCID 21186228、化合物

HRID 361421

反応式

HRID 361421 の反応式
Cl[C:2]1[C:7]([S:8]([O:11][C:12]2[CH:17]=[CH:16][C:15]([N+:18]([O-:20])=[O:19])=[CH:14][CH:13]=2)(=[O:10])=[O:9])=[CH:6][CH:5]=[CH:4][N:3]=1.[CH2:21]([C:25]1[CH:30]=[CH:29][C:28](B(O)O)=[CH:27][CH:26]=1)[CH:22]([CH3:24])[CH3:23].[F-].[K+].C1(C)C=CC=CC=1>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[CH2:21]([C:25]1[CH:30]=[CH:29][C:28]([C:2]2[C:7]([S:8]([O:11][C:12]3[CH:17]=[CH:16][C:15]([N+:18]([O-:20])=[O:19])=[CH:14][CH:13]=3)(=[O:10])=[O:9])=[CH:6][CH:5]=[CH:4][N:3]=2)=[CH:27][CH:26]=1)[CH:22]([CH3:24])[CH3:23]

参加物

7

反応物 4

HCID 1140TolueneHCID 522689Potassium FluorideHCID 2773472(4-Isobutylphenyl)boronic acidHCID 211862554-Nitrophenyl 2-chloropyridine-3-sulphonate

生成物 1

HCID 21186228HCID 21186228、化合物収率 55.3%

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒2 回

実験手順

Tetrakis(triphenylphosphine)palladium(0) (0.076 g) was added to a deoxygenated mixture of 4-nitrophenyl 2-chloropyridine-3-sulphonate (0.69 g), 4-isobutylphenylboronic acid (0.47 g), potassium fluoride (0.38 g), toluene (15 ml) and water (2.5 ml) and the mixture was stirred and heated under reflux for 24 hours. Water (50 ml) was added and the mixture was extracted with ethyl acetate (2×80 ml). The organic extracts were washed with saturated sodium chloride solution and then combined and dried (MgSO4). Volatile material was removed by evaporation and the residue was purified by gradient elution with dichloromethane/hexane (1:1-1:0 v/v) then dichloromethane/hexane/ethyl acetate (10:9:1 v/v) through a silica gel Mega Bond Elut column followed by recrystallisation from ethyl acetate/hexane to give 4-nitrophenyl 2-(4-isobutylphenyl)pyridine-3-sulphonate (0.50 g), m.p. 123°-124° C.; 1H NMR (d6 -DMSO): 0.9 (d, 6 H), 1.9 (m, 1 H), 2.55 (d, 2 H), 7.2-7.3 (m, 4 H), 7.5 (d, 2 H), 7.7 (dd, 1 H), 8.2 (d, 2 H), 8.4 (dd, 1 H), 9.0 (dd, 1 H); mass spectrum (+ve FAB, NBA/DMSO): 413 (M+H)+.

後処理

  1. temperatureheated
  2. temperatureunder reflux for 24 hours
  3. extractionthe mixture was extracted with ethyl acetate (2×80 ml)
  4. washThe organic extracts were washed with saturated sodium chloride solution
  5. dry with materialdried (MgSO4)
  6. customVolatile material was removed by evaporation
  7. customthe residue was purified by gradient elution with dichloromethane/hexane (1:1-1:0 v/v)
  8. customdichloromethane/hexane/ethyl acetate (10:9:1 v/v) through a silica gel Mega Bond Elut column followed by recrystallisation from ethyl acetate/hexane

出典と根拠

ORDレコード
ord-c7b6641b89b742aaa64ebc1c02e842f3
出典データセット
uspto-grants-1999_02
特許番号
US05866568

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