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2-(Di-tert-butylphosphino)biphenyl → 9-(4-tert-butylpyridin-2-yl)-2'-(4-phenylpyridin-2-yl)-9H-2,9'-bicarbazole

HRID 1509633
ノート
印刷プレビュー

反応式

HRID 1509633 の反応式
[C:1]1([C:7]2[CH:12]=[CH:11][N:10]=[C:9]([C:13]3[CH:25]=[CH:24][C:23]4[C:22]5[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=5)[NH:16][C:15]=4[CH:14]=3)[CH:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Br[C:27]1[CH:39]=[CH:38][C:37]2[C:36]3[C:31](=[CH:32][CH:33]=[CH:34][CH:35]=3)[N:30]([C:40]3[CH:45]=[C:44]([C:46]([CH3:49])([CH3:48])[CH3:47])[CH:43]=[CH:42][N:41]=3)[C:29]=2[CH:28]=1.CC(P(C(C)(C)C)C1C(C2C=CC=CC=2)=CC=CC=1)(C)C.CC([O-])(C)C.[Na+]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:46]([C:44]1[CH:43]=[CH:42][N:41]=[C:40]([N:30]2[C:29]3[CH:28]=[C:27]([N:16]4[C:15]5[CH:14]=[C:13]([C:9]6[CH:8]=[C:7]([C:1]7[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=7)[CH:12]=[CH:11][N:10]=6)[CH:25]=[CH:24][C:23]=5[C:22]5[C:17]4=[CH:18][CH:19]=[CH:20][CH:21]=5)[CH:39]=[CH:38][C:37]=3[C:36]3[C:31]2=[CH:32][CH:33]=[CH:34][CH:35]=3)[CH:45]=1)([CH3:49])([CH3:47])[CH3:48]
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

6

反応物 4

HCID 27342152-(Di-tert-butylphosphino)biphenylHCID 23676156Sodium t-butoxideHCID 1180072932-Bromo-9-(4-(tert-butyl)pyridin-2-yl)-9H-carbazoleHCID 1181139652-(4-phenylpyridin-2-yl)-9H-carbazole

生成物 1

HCID 1181141049-(4-tert-butylpyridin-2-yl)-2'-(4-phenylpyridin-2-yl)-9H-2,9'-bicarbazole

試薬・触媒・溶媒 1

HCID 9811564Bis(dibenzylideneacetone)palladium触媒

反応条件

温度
100 °C

実験手順

To a dry pressure Schlenk tube equipped with a magnetic stir bar was added 2-(4-phenylpyridin-2-yl)-9H-carbazole (676 mg, 2.11 mmol, 1.0 eq), 2-bromo-9-(4-tert-butylpyridin-2-yl)-9H-carbazole (958 mg, 2.53 mmol, 1.2 eq), Pd2(dba)3 (77 mg, 0.084 mmol, 0.04 eq), JohnPhos (50 mg, 0.169 mmol, 0.08 eq) and tBuONa (324 mg, 3.38 mmol, 1.6 eq). Then the tube was evacuated and back-filled with nitrogen, and the evacuation and back-fill procedure was repeated twice. Then dry solvent toluene (10 mL), dioxane (10 mL) were added under the protection of nitrogen. The tube was sealed and the mixture was stirred in an oil bath at a temperature of 95-105° C. for 43 hours. Then the mixture was cooled to ambient temperature. The solvent was removed under reduced pressure and the residue was purified through column chromatography on silica gel using hexane and ethyl acetate (10:1-8:1-5:1) as an eluent to obtain the desired product, 9-(4-tert-butylpyridin-2-yl)-2′-(4-phenylpyridin-2-yl)-9H-2,9′-bicarbazole Ligand N3NPh-ptb, as a brown solid (1175 mg in 90% yield). 1H NMR (DMSO-d6, 400 MHz): δ 1.15 (s, 9H), 7.25 (t, J=8.0 Hz, 1H), 7.31 (dd, J=5.2, 1.6 Hz, 1H), 7.34-7.57 (m, 9H), 7.74 (s, 1H), 7.78-7.82 (m, 3H), 7.91 (d, J=1.6 Hz, 1H), 8.11 (d, J=8.4 Hz, 1H), 8.21 (s, 1H), 8.24 (d, J=8.0 Hz, 1H), 8.29 (s, 1H), 8.31 (d, J=8.4 Hz, 2H), 8.45 (d, J=6.0 Hz, 1H), 8.51 (d, J=8.0 Hz, 1H), 8.57 (d, J=4.2 Hz, 1H). 13C NMR (DMSO-d6, 100 MHz): δ 29.96, 34.72, 108.01, 109.82, 109.85, 111.36, 115.97, 117.92, 119.14, 119.31, 119.80, 119.92, 120.23, 120.72, 120.84, 121.29, 122.00, 122.39, 122.94, 123.02, 123.45, 126.63, 126.84, 127.05, 129.06, 129.16, 134.83, 136.92, 137.49, 139.73, 139.78, 141.13, 141.47, 148.33, 149.39, 149.97, 150.55, 157.15, 163.08.

後処理

  1. customTo a dry pressure Schlenk tube equipped with a magnetic stir bar
  2. customThen the tube was evacuated
  3. additionback-filled with nitrogen
  4. additionThen dry solvent toluene (10 mL), dioxane (10 mL) were added under the protection of nitrogen
  5. customThe tube was sealed
  6. temperatureThen the mixture was cooled to ambient temperature
  7. customThe solvent was removed under reduced pressure
  8. customthe residue was purified through column chromatography on silica gel

出典と根拠

ORDレコード
ord-0871e05e1c104faaae3e6fe6c9340047
出典データセット
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09224963B2

反応ノート

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