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Isopropanol → octahydro-7a-methyl-1-[1-methyl-4-(2,2, 4-trimethyl-1,3-dioxolan-4-yl)-butyl]-4H-inden-4-one

HRID 579813
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HRID 579813 반응식
[Cr](Cl)([O-])(=O)=O.[NH+]1C=CC=CC=1C1C=CC=C[NH+]=1.[Cr](Cl)([O-])(=O)=O.C([O-])(=O)C.[Na+].[CH3:28][C:29]12[CH:37]([CH:38]([CH3:50])[CH2:39][CH2:40][CH2:41][C:42]3([CH3:49])[CH2:46][O:45][C:44]([CH3:48])([CH3:47])[O:43]3)[CH2:36][CH2:35][CH:34]1[CH:33]([OH:51])[CH2:32][CH2:31][CH2:30]2.CC(O)C>C(Cl)Cl.O>[CH3:28][C:29]12[CH:37]([CH:38]([CH3:50])[CH2:39][CH2:40][CH2:41][C:42]3([CH3:49])[CH2:46][O:45][C:44]([CH3:48])([CH3:47])[O:43]3)[CH2:36][CH2:35][CH:34]1[C:33](=[O:51])[CH2:32][CH2:31][CH2:30]2
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

7

반응물 4

HCID 3776IsopropanolHCID 517045Sodium AcetateHCID 14180908octahydro-7a-methyl-1-[1-methyl-4-(2,2,4-trimethyl-1,3-dioxolan-4-yl) butyl]-1H-inden-4-olHCID 178526115HCID 178526115, 화합물2회

생성물 1

HCID 14180910octahydro-7a-methyl-1-[1-methyl-4-(2,2, 4-trimethyl-1,3-dioxolan-4-yl)-butyl]-4H-inden-4-one수율 90%

시약·촉매·용매

2
HCID 962Water용매HCID 6344Dichloromethane용매2회

실험 절차

To a suspension of 1.720 g of 2,2'-bipyridinium chlorochromate and 0.860 g of anhydrous sodium acetate in 10 ml of methylene chloride, was added a solution of 0.500 g of [1R-[1β(R*,S*),3aα,4β,7aβ]]-octahydro-7a-methyl-1-[1-methyl-4-(2,2,4-trimethyl-1,3-dioxolan-4-yl)butyl]-1H-inden-4-ol in 5 ml of methylene chloride and the mixture obtained stirred at room temperature for 2 hours. Additional 0.800 g of 2,2'-bipyridinium chlorochromate was then added and the stirring continued for an additional 2.5 hours. After this time, 1 ml of 2-propanol was introduced and 15 minutes later, the mixture diluted with water and extracted with ether. The combined organic phases were dried, evaporated and the residue purified by fast filtration through silica (eluent: hexane-ethyl acetate, 3:1) to give 0.446 g (90% yield) of pure [1R-(1R*,S*)-1β,3aα,7aβ]]-octahydro-7a-methyl-1-[1-methyl-4-(2,2,4-trimethyl-1,3-dioxolan-4-yl)-butyl]-4H-inden-4-one.

후처리

  1. customthe mixture obtained
  2. waitthe stirring continued for an additional 2.5 hours
  3. extractionextracted with ether
  4. customThe combined organic phases were dried
  5. customevaporated
  6. filtrationthe residue purified by fast filtration through silica (eluent: hexane-ethyl acetate, 3:1)

출처 및 근거

ORD 기록
ord-8494c50c11d1458cadc7b4af9e9481a3
출처 데이터셋
uspto-grants-1988_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04749710

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