Potassium Phosphate, Tribasic → HCID 59412597, compound

HRID 877293Notes

Reaction equation

HRID 877293 reaction equation
C1(C)C=CC=CC=1P([C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=1[CH3:21])C1C=CC=CC=1C.BrC1[C:25]2[C:30]([CH:31]=[C:32]3[C:37]=1[CH:36]=[CH:35][CH:34]=[CH:33]3)=[C:29]1[CH:38]=[CH:39][CH:40]=[C:41]([C:42]3[CH:47]=[CH:46][C:45]([C:48]4[C:53]5=[CH:54][CH:55]=[C:56]6[C:65]([CH:64]=[C:63]7[C:58]([CH:59]=[CH:60][CH:61]=[CH:62]7)=[C:57]6Br)=[C:52]5[CH:51]=[CH:50][CH:49]=4)=[CH:44][CH:43]=3)[C:28]1=[CH:27][CH:26]=2.[C:67]1(B(O)O)[CH:72]=[CH:71][CH:70]=[CH:69][CH:68]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>C1(C)C=CC=CC=1.C([O-])(=O)C.[Pd+2].C([O-])(=O)C.O.O1CCOCC1>[C:67]1([C:57]2[C:56]3[C:65]([CH:64]=[C:63]4[C:58]=2[CH:59]=[CH:60][CH:61]=[CH:62]4)=[C:52]2[CH:51]=[CH:50][CH:49]=[C:48]([C:45]4[CH:44]=[CH:43][C:42]([C:41]5[C:28]6=[CH:27][CH:26]=[C:25]7[C:30]([CH:31]=[C:32]8[C:37]([CH:36]=[CH:35][CH:34]=[CH:33]8)=[C:21]7[C:16]7[CH:15]=[CH:20][CH:19]=[CH:18][CH:17]=7)=[C:29]6[CH:38]=[CH:39][CH:40]=5)=[CH:47][CH:46]=4)[C:53]2=[CH:54][CH:55]=3)[CH:72]=[CH:71][CH:70]=[CH:69][CH:68]=1

Participants

9

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 66827Phenylboronic AcidHCID 80271Tri-o-tolylphosphineHCID 86643581HCID 86643581, compound

Product 1

HCID 59412597HCID 59412597, compound

Reagents, catalysts & solvents 4

HCID 167845palladium(II) acetateCatalystHCID 962WaterSolventHCID 1140TolueneSolventHCID 312751,4-DioxaneSolvent

Procedure

913 mg (3 mmol) of tri-o-tolylphosphine and then 112 mg (0.5 mmol) of palladium(II) acetate are added to a well-stirred suspension of 21.2 g (40 mmol) of the resultant 1,4-bis(7-bromo(benz[a]anthracen-4-yl))benzene, 12.2 g (100 mmol) of benzeneboronic acid, 25.5 g (120 mmol) of tripotassium phosphate in a mixture of 300 ml of toluene, 100 ml of dioxane and 400 ml of water, and the mixture is subsequently heated under reflux for 16 h. After cooling, the precipitated solid is filtered off with suction, washed three times with 50 ml of toluene, three times with 50 ml of ethanol:water (1:1, v:v), three times with 100 ml of ethanol and finally dried. Recrystallisation five times from o-dichlorobenzene (about 7 ml/g); sublimation (p=5×10−5 mbar, T=400° C.). Yield: 16.4 g (24 mmol), 48.0%, purity 99.9% (HPLC), Tg=176.7° C.

Workup

  1. temperaturethe mixture is subsequently heated
  2. temperatureunder reflux for 16 h
  3. temperatureAfter cooling
  4. filtrationthe precipitated solid is filtered off with suction
  5. washwashed three times with 50 ml of toluene, three times with 50 ml of ethanol:water (1:1, v:v), three times with 100 ml of ethanol
  6. customfinally dried
  7. customRecrystallisation five times from o-dichlorobenzene (about 7 ml/g)
  8. customsublimation (p=5×10−5 mbar, T=400° C.)

Sources & evidence

ORD record
ord-e4fd367810a14c75b76d1945aef1e9c2
Source dataset
uspto-grants-2015_03
Patent number
US08986852B2

Reaction notes

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