Fluorene → 1,1,4,4,7,7,10,10-Octamethyl-2,3,4,7,8,9,10,12-octahydro-1H-dibenzo[b,h]fluorene

HRID 495731

반응식

HRID 495731 반응식
[CH:1]1[C:13]2[CH2:12][C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1.[CH3:14][C:15](O)([CH2:17][CH2:18][C:19]([CH3:22])(O)[CH3:20])[CH3:16].[Cl-].[Al+3].[Cl-].[Cl-]>ClCCl>[CH3:14][C:15]1([CH3:16])[C:2]2[CH:1]=[C:13]3[C:5]([C:6]4[CH:7]=[C:8]5[C:19]([CH3:22])([CH3:20])[CH2:18][CH2:17][C:15]([CH3:16])([CH3:14])[C:9]5=[CH:10][C:11]=4[CH2:12]3)=[CH:4][C:3]=2[C:19]([CH3:22])([CH3:20])[CH2:18][CH2:17]1

참가 물질

5

반응물 3

HCID 6853FluoreneHCID 80312,5-Dimethyl-2,5-hexanediolHCID 6451240Aluminum(III) Chloride

생성물 1

HCID 126031611,1,4,4,7,7,10,10-Octamethyl-2,3,4,7,8,9,10,12-octahydro-1H-dibenzo[b,h]fluorene수율 53%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

반응 조건

온도
-8 °C

실험 절차

In a 500 ml three-necked flask purged with nitrogen, 9.72 g (58.6 mmol, 1 eq) of fluorene and 19.61 g (134 mmol, 2.3 eq) of 2,5-dimethyl-2,5-hexanediol were placed at room temperature. Then, 85 ml of dehydrated dichloromethane was added. After stirring by a magnetic stirrer, the mixture was cooled to −8° C. with an ice bath (light brown slurry). To the slurry, 38.9 g (292 mmol, 5.0 eq) of pulverized anhydrous aluminum chloride was added over a period of 70 minutes, followed by stirring at 0° C. for 2 hours. The ice bath was removed, and the solution was stirred at room temperature for 19 hours (dark brown solution). After disappearance of fluorene was confirmed by gas chromatography, the dark brown solution was poured into 150 ml of ice water to perform quenching (yellowish brown slurry). After the soluble component was extracted with 500 ml of diethyl ether, the organic phase was neutralized with a saturated sodium hydrogencarbonate aqueous solution and washed with water. The dispensed organic phase was dried over MgSO4, then the MgSO4 was filtered off, and from the filtrate the solvent was vacuum distilled off by a rotary evaporator. The residue was transferred onto a Kiriyama funnel, washed 6 times with 10 ml of hexane and vacuum dried to obtain a white powder (12.0 g, yield: 53%)

후처리

  1. customwere placed at room temperature
  2. stirringby stirring at 0° C. for 2 hours
  3. customThe ice bath was removed
  4. stirringthe solution was stirred at room temperature for 19 hours (dark brown solution)
  5. additionthe dark brown solution was poured into 150 ml of ice water
  6. customto perform quenching (yellowish brown slurry)
  7. extractionAfter the soluble component was extracted with 500 ml of diethyl ether
  8. washwashed with water
  9. dry with materialThe dispensed organic phase was dried over MgSO4
  10. filtrationthe MgSO4 was filtered off
  11. distillationdistilled off by a rotary evaporator
  12. washwashed 6 times with 10 ml of hexane and vacuum
  13. customdried

출처 및 근거

ORD 기록
ord-52cd3132d81741f087feaaca0a38c2bc
출처 데이터셋
uspto-grants-2005_09
특허 번호
US06939928B1

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