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

HRID 64554
Notes
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Reaction equation

HRID 64554 reaction equation
Br[C:2]1[CH:3]=[C:4]([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:5]=[CH:6][CH:7]=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:6]4[CH:7]=[CH:2][CH:3]=[C:4]([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:5]=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
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 83681Tris(1,1-dimethylethyl)phosphineHCID 23676156Sodium t-butoxideHCID 575364512-(3-Bromophenyl)-9,10-diphenylanthraceneHCID 666918723-(Dibenzothiophen-4-yl)-9H-carbazole

Product 1

HCID 866634103-(Dibenzothiophen-4-yl)-9-[3-(9,10-diphenyl-2-anthryl)phenyl]-9H-carbazoleYield 70%

Reagents, catalysts & solvents 3

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

Procedure

In a 100-mL three-neck flask were put 1.0 g (2.1 mmol) of 2-(3-bromophenyl)-9,10-diphenylanthracene, 0.72 g (2.1 mmol) of 3-(dibenzothiophen-4-yl)-9H-carbazole, and 0.59 g (6.2 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, 59 mg (0.10 mmol) of bis(dibenzylideneacetone)palladium(0) was added to this mixture. This mixture was stirred at 110° C. for 5 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). The filtrate was concentrated to give a yellow solid. This solid was purified by silica gel column chromatography (developing solvent, hexane:toluene=5:1). The obtained solid was recrystallized from toluene/hexane to give 1.1 g of a yellow solid in 70% yield. The synthesis scheme of Step 2 is illustrated in (b-14).

Workup

  1. customIn a 100-mL three-neck flask were put
  2. customThis mixture was degassed
  3. stirringThis mixture was stirred at 110° C. for 5 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 yellow solid
  7. customThis solid was purified by silica gel column chromatography (developing solvent, hexane:toluene=5:1)
  8. customThe obtained solid was recrystallized from toluene/hexane

Sources & evidence

ORD record
ord-00c231f828f34886a790020624512223
Source dataset
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09450188B2

Reaction notes

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