Tris(1,1-dimethylethyl)phosphine → 3-(Dibenzothiophen-4-yl)-9-[4-(9,10-diphenyl-2-anthryl)phenyl]-9H-carbazole

HRID 64553Notes

Reaction equation

HRID 64553 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:21]=[CH:20][C:19]3[C:10](=[C:11]([C:28]4[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=4)[C:12]4[C:17]([C:18]=3[C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)=[CH:16][CH:15]=[CH:14][CH:13]=4)[CH:9]=2)=[CH:4][CH:3]=1.[CH:34]1[C:42]2[C:41]3[CH:43]=[CH:44][CH:45]=[CH:46][C:40]=3[S:39][C:38]=2[C:37]([C:47]2[CH:48]=[CH:49][C:50]3[NH:51][C:52]4[C:57]([C:58]=3[CH:59]=2)=[CH:56][CH:55]=[CH:54][CH:53]=4)=[CH:36][CH:35]=1.CC(C)([O-])C.[Na+].C(P(C(C)(C)C)C(C)(C)C)(C)(C)C>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].CCCCCC.C1(C)C=CC=CC=1>[CH:34]1[C:42]2[C:41]3[CH:43]=[CH:44][CH:45]=[CH:46][C:40]=3[S:39][C:38]=2[C:37]([C:47]2[CH:48]=[CH:49][C:50]3[N:51]([C:2]4[CH:3]=[CH:4][C:5]([C:8]5[CH:21]=[CH:20][C:19]6[C:10](=[C:11]([C:28]7[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=7)[C:12]7[C:17]([C:18]=6[C:22]6[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=6)=[CH:16][CH:15]=[CH:14][CH:13]=7)[CH:9]=5)=[CH:6][CH:7]=4)[C:52]4[C:57]([C:58]=3[CH:59]=2)=[CH:56][CH:55]=[CH:54][CH:53]=4)=[CH:36][CH:35]=1

Participants

8

Reactant 4

HCID 83681Tris(1,1-dimethylethyl)phosphineHCID 23676156Sodium t-butoxideHCID 575364702-(4-Bromophenyl)-9,10-diphenylanthraceneHCID 666918723-(Dibenzothiophen-4-yl)-9H-carbazole

Product 1

HCID 866634083-(Dibenzothiophen-4-yl)-9-[4-(9,10-diphenyl-2-anthryl)phenyl]-9H-carbazoleYield 61%

Reagents, catalysts & solvents 3

HCID 6505921(1E,4E)-1,5-diphenylpenta-1,4-dien-3-one; palladiumCatalystHCID 1140TolueneSolventHCID 8058HexaneSolvent

Procedure

In a 50-mL three-neck flask were put 1.3 g (2.7 mmol) of 2-(4-bromophenyl)-9,10-diphenylanthracene, 0.93 g (2.7 mmol) of 3-(dibenzothiophen-4-yl)-9H-carbazole, and 0.76 g (8.0 mmol) of sodium tert-butoxide. After the air in the flask was replaced with nitrogen, to this mixture were added 20 mL of toluene and 0.2 mL of tri(tert-butyl)phosphine (a 10 wt % hexane solution). This mixture was degassed by being stirred while the pressure was reduced. After the degassing, 76 mg (0.13 mmol) of bis(dibenzylideneacetone)palladium(0) was added to this mixture. This mixture was stirred at 110° C. for 4 hours under a nitrogen stream. After the stirring, the obtained mixture was suction-filtered through Celite (produced by Wako Pure Chemical Industries, Ltd., Catalog No. 531-16855), alumina, and Florisil (produced by Wako Pure Chemical Industries, Ltd., Catalog No. 540-00135), and the filtrate was concentrated to give a solid. The obtained solid was purified by silica gel column chromatography (developing solvent, hexane:toluene=5:1). A suspension was formed by addition of toluene/hexane to the obtained solid, and the suspension was irradiated with ultrasonic waves. Then, a solid was collected by suction filtration, so that 1.2 g of a yellow solid which was the object of the synthesis was obtained in a yield of 61%. The synthesis scheme of Step 2 is illustrated in (b-12).

Workup

  1. customIn a 50-mL three-neck flask were put
  2. customThis mixture was degassed
  3. stirringThis mixture was stirred at 110° C. for 4 hours under a nitrogen stream
  4. filtrationAfter the stirring, the obtained mixture was suction-filtered through Celite (produced by Wako Pure Chemical Industries, Ltd., Catalog No. 531-16855), alumina, and Florisil (produced by Wako Pure Chemical Industries, Ltd., Catalog No. 540-00135)
  5. concentrationthe filtrate was concentrated
  6. customto give a solid
  7. customThe obtained solid was purified by silica gel column chromatography (developing solvent, hexane:toluene=5:1)
  8. customA suspension was formed by addition of toluene/hexane to the obtained solid
  9. customthe suspension was irradiated with ultrasonic waves
  10. filtrationThen, a solid was collected by suction filtration, so that 1.2 g of a yellow solid which
  11. customwas obtained in a yield of 61%
  12. customThe synthesis scheme of Step 2

Sources & evidence

ORD record
ord-78104b6e52984b57afc1a34e499679a3
Source dataset
uspto-grants-2016_09
Patent number
US09450188B2

Reaction notes

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