Pyridine → 3-({[tert-butyl(dimethyl)silyl]oxy}methyl)phenyl (2Z)-4-hydroxy-2-[4-(methylsulfonyl)phenyl]-3-phenylbut-2-enyl carbonate

HRID 1269362

반응식

HRID 1269362 반응식
[Si:1]([O:8][CH2:9][C:10]1[CH:11]=[C:12]([OH:16])[CH:13]=[CH:14][CH:15]=1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].ClC(Cl)(O[C:21](=[O:27])[O:22][C:23](Cl)(Cl)Cl)Cl.N1C=CC=CC=1.[CH3:35][S:36]([C:39]1[CH:44]=[CH:43][C:42](/[C:45](=[C:48](\[C:51]2[CH:56]=[CH:55][CH:54]=[CH:53][CH:52]=2)/[CH2:49][OH:50])/CO)=[CH:41][CH:40]=1)(=[O:38])=[O:37]>C(Cl)Cl>[C:21](=[O:27])([O:22][CH2:23]/[C:45](/[C:42]1[CH:41]=[CH:40][C:39]([S:36]([CH3:35])(=[O:38])=[O:37])=[CH:44][CH:43]=1)=[C:48](/[C:51]1[CH:52]=[CH:53][CH:54]=[CH:55][CH:56]=1)\[CH2:49][OH:50])[O:16][C:12]1[CH:13]=[CH:14][CH:15]=[C:10]([CH2:9][O:8][Si:1]([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2])[CH:11]=1

참가 물질

6

반응물 4

HCID 1049Pyridine2회HCID 94429TriphosgeneHCID 149405563-((((1,1-Dimethylethyl)dimethylsilyl)oxy)methyl)phenolHCID 57434773(2Z)-2-[4-(methylsulfonyl)phenyl]-3-phenylbut-2-ene-1,4-diol

생성물 1

HCID 588411703-({[tert-butyl(dimethyl)silyl]oxy}methyl)phenyl (2Z)-4-hydroxy-2-[4-(methylsulfonyl)phenyl]-3-phenylbut-2-enyl carbonate수율 42.8%

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

To a solution of 3.06 g of 3-({[tert-butyl(dimethyl)silyl]oxy}methyl)phenol and 1.50 g of triphosgene in 20 mL of CH2Cl2 cooled at −78° C. was added 1.2 mL of pyridine. The reaction mixture was warmed to rt. After 15–30 min, the white suspension was transferred to a solution containing 5.95 g of (2Z)-2-[4-(methylsulfonyl)phenyl]-3-phenylbut-2-ene-1,4-diol and 1.5 mL of pyridine in 20 mL of CH2Cl2 at rt. The reaction was stirred at rt for 15 min. The reaction was quenched with aqueous 1N HCl, extracted with EtOAc and washed with brine, dried over sodium sulfate, evaporated, and purified by flash chromatography (50–70% EtOAc/hexane) to afford 1.26 g of the title compound as a yellow oil.

후처리

  1. waitAfter 15–30 min
  2. customThe reaction was quenched with aqueous 1N HCl
  3. extractionextracted with EtOAc
  4. washwashed with brine
  5. dry with materialdried over sodium sulfate
  6. customevaporated
  7. custompurified by flash chromatography (50–70% EtOAc/hexane)

출처 및 근거

ORD 기록
ord-6194b3a9f7d34c66af83ac79ba135f51
출처 데이터셋
uspto-grants-2007_04
특허 번호
US07199154B2

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