Hydroquinone → 4-(tert-Butyldimethylsiloxy)phenol

HRID 504996노트

반응식

HRID 504996 반응식
N1C=CN=C1.[C:6]1([CH:13]=[CH:12][C:10]([OH:11])=[CH:9][CH:8]=1)[OH:7].[Si:14](Cl)([C:17]([CH3:20])([CH3:19])[CH3:18])([CH3:16])[CH3:15]>CN(C)C=O.O>[Si:14]([O:7][C:6]1[CH:13]=[CH:12][C:10]([OH:11])=[CH:9][CH:8]=1)([C:17]([CH3:20])([CH3:19])[CH3:18])([CH3:16])[CH3:15]

참가 물질

6

반응물 3

HCID 785HydroquinoneHCID 795ImidazoleHCID 28928tert-Butyldimethylsilyl chloride

생성물 1

HCID 5973884-(tert-Butyldimethylsiloxy)phenol

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

실험 절차

A solution of 2.9 parts of imidazole, 1.99 parts of hydroquinone and 3 parts of tert-butyldimethylsilyl chloride in 10 mL of dimethylformamide was stirred at room temperature for 1 hr 45 min. The reaction was monitored by TLC showed formation of product. The reaction mixture was diluted with 50 mL of deionized water and product was extracted with 2×50 mL of ether. The combined organic layer was dried over anhydrous Na2SO4 and filtered. The filtrate was concentrated under reduced pressure and purified by column chromatography on silica gel with 5% ethyl acetate-hexanes to yield 2.24 parts 4-(tert-butyldimethylsilyloxy)phenol. NMR was used to confirm the following structure.

후처리

  1. extractionwas extracted with 2×50 mL of ether
  2. dry with materialThe combined organic layer was dried over anhydrous Na2SO4
  3. filtrationfiltered
  4. concentrationThe filtrate was concentrated under reduced pressure
  5. custompurified by column chromatography on silica gel with 5% ethyl acetate-hexanes

출처 및 근거

ORD 기록
ord-5ebfe4165b114690a02b87895ef24801
출처 데이터셋
uspto-grants-2010_08
특허 번호
US07781229B2

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