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Ammonium Chloride → (3R,7R,11R)-1-(2',5'-dimethoxy-3',4',6'-trimethylphenyl)-3,7,11,15-tetramethylhexadecan-3-ol

HRID 247638
ノート
印刷プレビュー

反応式

HRID 247638 の反応式
[CH3:1][C@H:2]([CH2:6][CH2:7][CH2:8][C@H:9]([CH3:16])[CH2:10][CH2:11][CH2:12][CH:13]([CH3:15])[CH3:14])[CH2:3][CH2:4]Br.[Mg].[CH3:18][O:19][C:20]1[C:25]([CH3:26])=[C:24]([CH3:27])[C:23]([O:28][CH3:29])=[C:22]([CH3:30])[C:21]=1[CH2:31][CH2:32][C@:33]1([CH3:36])[O:35][CH2:34]1.[Cl-].[NH4+]>C(OCC)C.[Cu+]>[CH3:18][O:19][C:20]1[C:25]([CH3:26])=[C:24]([CH3:27])[C:23]([O:28][CH3:29])=[C:22]([CH3:30])[C:21]=1[CH2:31][CH2:32][C@:33]([CH3:36])([OH:35])[CH2:34][CH2:4][CH2:3][C@H:2]([CH3:1])[CH2:6][CH2:7][CH2:8][C@H:9]([CH3:16])[CH2:10][CH2:11][CH2:12][CH:13]([CH3:15])[CH3:14]
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 25517Ammonium ChlorideHCID 5462224MagnesiumHCID 13191851(3R,7R)-1-bromo-3,7,11-trimethyldodecaneHCID 18602184(S)-4-(2',5'-dimethoxy-3',4',6'-trimethylphenyl)-2-methyl-1,2-epoxy-butane

生成物 1

HCID 14631375(3R,7R,11R)-1-(2',5'-dimethoxy-3',4',6'-trimethylphenyl)-3,7,11,15-tetramethylhexadecan-3-ol

試薬・触媒・溶媒 2

HCID 104815
Copper(1+)
触媒
HCID 3283Diethyl Ether溶媒

実験手順

5.8 mmol of (3R,7R)-3,7,11-trimethyl-dodecyl bromide were heated at reflux in 20 ml of ethyl ether for 0.25 hour with calcinated magnesium. 1 g of (S)-4-(2',5'-dimethoxy-3',4',6'-trimethylphenyl)-2-methyl-1,2-epoxybutane and 0.9 g of copper (I) 2-propylacetylide [or 1.2 g of copper (I) bromide-dimethyl sulphide complex] were then added at 0° C. The temperature of the mixture was subsequently left to rise to room temperature and the mixture was stirred overnight. 10 ml of ammonium chloride were then added and the mixture was extracted with ethyl ether. The extract was dried, concentrated and distilled in a bulb-tube (b.p.0.01 =140° C.). There were obtained 1.28 g (72%) [or 1.41 g (79%)] of (3R,7R,11R)-1-(2',5'-dimethoxy-3',4',6'-trimethylphenyl)-3,7,11,15-tetramethylhexadecan-3-ol as a colourless oil.

後処理

  1. waitThe temperature of the mixture was subsequently left
  2. customto rise to room temperature
  3. extractionthe mixture was extracted with ethyl ether
  4. customThe extract was dried
  5. concentrationconcentrated
  6. distillationdistilled in a bulb-tube (b.p.0.01 =140° C.)

出典と根拠

ORDレコード
ord-d697f5ef903c49519ae057a970f9e95a
出典データセット
uspto-grants-1987_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US04709055

反応ノート

読み込み中…

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