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Dimethyl Sulfoxide → (+/-)-6-Benzyloxy-2-methoxy-2,5,7,8-tetramethylchroman

HRID 268423
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HRID 268423 반응식
[OH:1][C:2]1[C:3]([CH3:17])=[C:4]2[C:9](=[C:10]([CH3:13])[C:11]=1[CH3:12])[O:8][C:7]([O:15][CH3:16])([CH3:14])[CH2:6][CH2:5]2.C(=O)([O-])[O-].[K+].[K+].CS(C)=O.[CH2:28](Cl)[C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1>O>[CH2:28]([O:1][C:2]1[C:3]([CH3:17])=[C:4]2[C:9](=[C:10]([CH3:13])[C:11]=1[CH3:12])[O:8][C:7]([O:15][CH3:16])([CH3:14])[CH2:6][CH2:5]2)[C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1
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참가 물질

6

반응물 4

HCID 679Dimethyl SulfoxideHCID 7503Benzyl ChlorideHCID 11430Potassium CarbonateHCID 1037632H-1-Benzopyran-6-ol, 3,4-dihydro-2-methoxy-2,5,7,8-tetramethyl-

생성물 1

HCID 14415660(+/-)-6-Benzyloxy-2-methoxy-2,5,7,8-tetramethylchroman

시약·촉매·용매 1

HCID 962Water
용매

실험 절차

A mixture of 70.8 g. of (±)-6-hydroxy-2-methoxy-2,5,7,8-tetramethylchroman, 90.9 g. of anhydrous potassium carbonate, 300 ml. of dimethylsulfoxide and 69 ml. of benzyl chloride was stirred at 23° under N2 for 24 hours. The suspension was poured into water and extracted with ether. The ether solutions were washed with brine, dried over sodium sulfate and stripped of solvent to give (±)-6-benzyloxy-2-methoxy-2,5,7,8-tetramethylchroman as an oil which solidified to a light yellow mass, m.p. 70°-72.5°.

후처리

  1. additionA mixture of 70.8 g
  2. extractionextracted with ether
  3. washThe ether solutions were washed with brine
  4. dry with materialdried over sodium sulfate

출처 및 근거

ORD 기록
ord-6f8275b7ff9d4d8f90f989ea0ff322cf
출처 데이터셋
uspto-grants-1976_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US03947473

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