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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 1789604
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HRID 1789604 반응식
[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]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

7

반응물 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

생성물 1

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

시약·촉매·용매 2

HCID 104815
Copper(1+)
촉매
HCID 3283Diethyl Ether용매

실험 절차

5.8 mmol of (3R,7R)-3,7,11-trimethyl-dodecyl bromide are heated at reflux for 1/4 hour in 20 ml of diethyl ether with etched magnesium. 1 g of (S)-4-(2',5'-dimethoxy-3',4',6'-trimethylphenyl)-2-methyl-1,2-epoxy-butane and 0.9 g of copper(I) 2-propylacetylide (or 1.2 g of copper(I) bromide-dimethyl sulphide complex) are then added at 0° C. The temperature of the reaction mixture is subsequently left to rise to room temperature and the mixture is stirred for about 16 hours. 10 ml of ammonium chloride are then added and the mixture is extracted with diethyl ether. The extract is dried, concentrated and distilled in a bulb-tube (b.p.0.01 =140° C.). There are 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-tetramethyl-hexadecan-3-ol as a colourless oil, [α]D20 -0.67° (c=0.9% in CHCl3).

후처리

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

출처 및 근거

ORD 기록
ord-5b0c068bddba4660a3c804cef037e9b1
출처 데이터셋
uspto-grants-1987_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04689427

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