1,1'-Biphenyl-4-yl-boronic acid → 2,2',4,4',7,7'-Hexabiphenylyl-9,9'-spirobifluorene

HRID 356796노트

반응식

HRID 356796 반응식
Br[C:2]1[CH:14]=[C:13]2[C:5]([C:6]3[C:11](=[CH:12]2)[C:10]2([C:26]4[C:18]([C:19]5[C:24]([CH:25]=4)=[CH:23][CH:22]=[CH:21][CH:20]=5)=[CH:17][CH:16]=[CH:15]2)[C:9](Br)=[C:8](Br)[C:7]=3Br)=[C:4](Br)[C:3]=1Br.B(O)(O)[C:33]1[CH:34]=[CH:35][C:36]([C:39]2[CH:40]=[CH:41][CH:42]=[CH:43][CH:44]=2)=[CH:37][CH:38]=1>C1(C)C=CC=CC=1.C(=O)([O-])[O-].[K+].[K+].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>[C:36]1([C:39]2[CH:40]=[CH:41][CH:42]=[CH:43][CH:44]=2)[CH:35]=[CH:34][CH:33]=[CH:38][C:37]=1[C:2]1[CH:14]=[C:13]([C:12]2[CH:25]=[CH:26][CH:18]=[CH:17][C:11]=2[C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[C:5]2[C:6]3[C:15](=[CH:10][C:9]([C:40]4[CH:41]=[CH:42][CH:43]=[CH:44][C:39]=4[C:36]4[CH:37]=[CH:38][CH:33]=[CH:34][CH:35]=4)=[CH:8][CH:7]=3)[C:16]3([C:17]4[CH:18]=[C:26]([C:40]5[CH:41]=[CH:42][CH:43]=[CH:44][C:39]=5[C:36]5[CH:37]=[CH:38][CH:33]=[CH:34][CH:35]=5)[CH:25]=[C:24]([C:23]5[CH:22]=[CH:21][CH:20]=[CH:16][C:15]=5[C:10]5[CH:11]=[CH:6][CH:7]=[CH:8][CH:9]=5)[C:19]=4[C:42]4[C:41]3=[CH:40][C:39]([C:36]3[CH:37]=[CH:38][CH:33]=[CH:34][C:35]=3[C:13]3[CH:14]=[CH:2][CH:3]=[CH:4][CH:5]=3)=[CH:44][CH:43]=4)[C:4]=2[CH:3]=1

참가 물질

6

반응물 2

HCID 1512531,1'-Biphenyl-4-yl-boronic acidHCID 86753354Hexabromospirobifluorene

생성물 1

HCID 220160562,2',4,4',7,7'-Hexabiphenylyl-9,9'-spirobifluorene

시약·촉매·용매 3

HCID 178418397HCID 178418397, 화합물촉매HCID 1140Toluene용매2회HCID 11430Potassium Carbonate용매

실험 절차

In a 250 ml two-necked flask fitted with reflux condenser and precision glass stirrer, 1.6 g of hexabromospirobifluorene and 3 g of biphenylboronic acid are slurried in a mixture of 50 ml of toluene and 50 ml of 1M potassium carbonate solution. The mixture is refluxed under nitrogen and 115 mg of tetrakis(triphenylphosphine)palladium in 5 ml of toluene are added. The mixture is boiled under reflux for 7 hours while stirring. After the reaction is complete, the cooled solution is filtered and the filtrate is extracted twice by shaking with water (to improve the phase separation, chloroform is added). The organic phase is dried over sodium sulfate, filtered through a short column of silica gel and subsequently evaporated on a rotary evaporator. The product is further purified by recrystallization from dichloromethane/pentane. This gives 2 g (80%) of colorless crystals which fluoresce blue under UV illumination.

후처리

  1. customIn a 250 ml two-necked flask fitted
  2. temperaturewith reflux condenser and precision glass stirrer
  3. temperatureThe mixture is refluxed under nitrogen
  4. temperatureunder reflux for 7 hours
  5. filtrationthe cooled solution is filtered
  6. extractionthe filtrate is extracted twice
  7. stirringby shaking with water (
  8. customthe phase separation, chloroform
  9. additionis added)
  10. dry with materialThe organic phase is dried over sodium sulfate
  11. filtrationfiltered through a short column of silica gel
  12. customsubsequently evaporated on a rotary evaporator
  13. customThe product is further purified by recrystallization from dichloromethane/pentane

출처 및 근거

ORD 기록
ord-013fffe7c5f5464ab6a34155523b77d7
출처 데이터셋
uspto-grants-1998_11
특허 번호
US05840217

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