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Water → 4-Carbethoxyphenyl 5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthylmethyl ether

HRID 6515
ノート
印刷プレビュー

反応式

HRID 6515 の反応式
Br[CH2:2][C:3]1[CH:12]=[CH:11][C:10]2[C:9]([CH3:14])([CH3:13])[CH2:8][CH2:7][C:6]([CH3:16])([CH3:15])[C:5]=2[CH:4]=1.[OH:17][C:18]1[CH:28]=[CH:27][C:21]([C:22]([O:24][CH2:25][CH3:26])=[O:23])=[CH:20][CH:19]=1.C(=O)([O-])[O-].[K+].[K+].O>CN(C)C=O>[CH3:13][C:9]1([CH3:14])[CH2:8][CH2:7][C:6]([CH3:16])([CH3:15])[C:5]2[CH:4]=[C:3]([CH2:2][O:17][C:18]3[CH:19]=[CH:20][C:21]([C:22]([O:24][CH2:25][CH3:26])=[O:23])=[CH:27][CH:28]=3)[CH:12]=[CH:11][C:10]1=2
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 962WaterHCID 8434EthylparabenHCID 11430Potassium CarbonateHCID 27355976-(Bromomethyl)-1,1,4,4-Tetramethyl-1,2,3,4-Tetrahydronaphthalene

生成物 1

HCID 148505914-Carbethoxyphenyl 5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthylmethyl ether収率 50.8%

試薬・触媒・溶媒 1

HCID 6228
Dimethylformamide
溶媒

実験手順

10 g (36 mmol) of 2-bromomethyl-5,6,7,8-tetrahydro-5,5,8,8-tetramethylnaphthalene, 6 g (36 mmol) of ethyl 4-hydroxybenzoate and 7.2 g (52 mmol) of anhydrous potassium carbonate in 60 ml of dimethylformamide were refluxed for 5.25 h. The mixture was then poured into water and extracted several times with ether, and the organic phase was washed with water, dried over Na2SO4 and concentrated. Recrystallization from methanol resulted in 6.7 g of the title compound of melting point 109°-11° C.

後処理

  1. extractionextracted several times with ether
  2. washthe organic phase was washed with water
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated
  5. customRecrystallization from methanol

出典と根拠

ORDレコード
ord-46be299854ee4a8dbe1a9893d4f4ca6f
出典データセット
uspto-grants-1993_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05248823

反応ノート

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