3-Methyl-2,3,4,5,6,7-hexahydro-1H-inden-1-one → 1,3-dimethyl-4,5,6,7-tetrahydro-1H-indene

HRID 743488ノート

反応式

HRID 743488 の反応式
[CH3:1][Li].[CH3:3][CH:4]1[C:12]2[CH2:11][CH2:10][CH2:9][CH2:8][C:7]=2[C:6](=O)[CH2:5]1>C(OCC)C>[CH3:3][C:4]1[C:12]2[CH2:11][CH2:10][CH2:9][CH2:8][C:7]=2[CH:6]([CH3:1])[CH:5]=1

参加物

4

反応物 2

HCID 111055313-Methyl-2,3,4,5,6,7-hexahydro-1H-inden-1-oneHCID 178418348HCID 178418348、化合物

生成物 1

HCID 129801691,3-dimethyl-4,5,6,7-tetrahydro-1H-indene収率 45.7%

試薬・触媒・溶媒 1

HCID 3283Diethyl Ether溶媒

実験手順

Methyl lithium (96 mL, 1.5M, 0.144 mol) was added dropwise to a solution of 4,5,6,7-tetrahydro-1-methyl-indan-3-one (17.7 g, 0.118 mol) in 50 mL of diethyl ether under an argon atmosphere whereupon the reaction mixture was refluxed for 18 hours. The mixture was hydrolyzed, and extracted with diethyl ether. The ether extracts were dried over anhydrous MgSO4 and filtered. To the ether solution 0.5 mL of 6M HCl was added and the solution was stirred for one hour. After this time period the ether solution was washed with water, dried over anhydrous MgSO4, filtered, and concentrated. Distillation at reduced pressure afforded 8.0 g (45 percent) of product.

後処理

  1. temperaturewas refluxed for 18 hours
  2. extractionextracted with diethyl ether
  3. dry with materialThe ether extracts were dried over anhydrous MgSO4
  4. filtrationfiltered
  5. additionTo the ether solution 0.5 mL of 6M HCl was added
  6. washAfter this time period the ether solution was washed with water
  7. dry with materialdried over anhydrous MgSO4
  8. filtrationfiltered
  9. concentrationconcentrated
  10. distillationDistillation at reduced pressure

出典と根拠

ORDレコード
ord-82f31b256d344ce49697d27db71ecafc
出典データセット
uspto-grants-1996_09
特許番号
US05556928

反応ノート

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