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Methanesulfonic Acid → 3-(Isobutylamino)-6,8-difluoro-1,2,3,4-tetrahydrocarbazole 3-(Acetamido)-6,8-difluoro-1,2,3,4-tetrahydrocarbazole

HRID 128134
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HRID 128134 반응식
[C:1](NC1CCC(=O)CC1)(=O)C.Cl.[F:13][C:14]1[CH:19]=[C:18]([F:20])[CH:17]=[CH:16][C:15]=1[NH:21]N.CS(O)(=O)=O.[C:28]([NH:31][CH:32]1[CH2:44][C:43]2[C:42]3[C:37](=[C:38]([F:46])[CH:39]=[C:40]([F:45])[CH:41]=3)[NH:36][C:35]=2[CH2:34][CH2:33]1)(=[O:30])[CH3:29]>C(O)C>[C:28]([NH:31][CH:32]1[CH2:44][C:43]2[C:42]3[C:37](=[C:38]([F:46])[CH:39]=[C:40]([F:45])[CH:41]=3)[NH:36][C:35]=2[CH2:34][CH2:33]1)(=[O:30])[CH3:29].[CH2:35]([NH:36][CH:37]1[CH2:38][C:39]2[C:16]3[C:15](=[C:14]([F:13])[CH:19]=[C:18]([F:20])[CH:17]=3)[NH:21][C:40]=2[CH2:41][CH2:42]1)[CH:43]([CH3:44])[CH3:1]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 6395Methanesulfonic AcidHCID 538565N-(4-Oxocyclohexyl)acetamideHCID 27333012,4-Difluorophenylhydrazine hydrochlorideHCID 128918073-(Acetamido)-6,8-difluoro-1,2,3,4-tetrahydrocarbazole

생성물 1

HCID 234705183-(Isobutylamino)-6,8-difluoro-1,2,3,4-tetrahydrocarbazole 3-(Acetamido)-6,8-difluoro-1,2,3,4-tetrahydrocarbazole

시약·촉매·용매 1

HCID 702Ethanol용매

실험 절차

A solution of 15.5 g. of 4-acetamidocyclohexanone, 18 g. of 2,4-difluorophenylhydrazine hydrochloride and 10 g. of methanesulfonic acid in 200 ml. of absolute ethyl alcohol was heated under reflux for two hours, cooled, filtered, and the filtrate was evaporated to dryness under reduced pressure. The residual oil was triturated with water and the resulting solid was collected by filtration, triturated with ether, and recrystallized by dissolving in methanol, adding toluene, and evaporating the methanol to give 8.5 g. of 3-(acetamido)-6,8-difluoro-1,2,3,4-tetrahydrocarbazole, m.p. 179°-183° C.

후처리

  1. temperatureunder reflux for two hours
  2. temperaturecooled
  3. filtrationfiltered
  4. customthe filtrate was evaporated to dryness under reduced pressure
  5. customThe residual oil was triturated with water
  6. filtrationthe resulting solid was collected by filtration
  7. customtriturated with ether
  8. customrecrystallized
  9. dissolutionby dissolving in methanol
  10. additionadding toluene
  11. customevaporating the methanol
  12. customto give 8.5 g

출처 및 근거

ORD 기록
ord-7777562742ca4dd4bc933cd89e1f6c06
출처 데이터셋
uspto-grants-1981_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04257952

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