Ammonium Chloride → HCID 58786166, 화합물

HRID 1375967노트

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HRID 1375967 반응식
C([Li])CCC.Br[C:7]1[CH:8]=[C:9]([CH3:16])[CH:10]=[CH:11][C:12]=1[O:13][CH2:14][CH3:15].[CH2:17]([O:24][C@@H:25]1[C@@H:31]([O:32][CH2:33][C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[C@H:30]([O:40][CH2:41][C:42]2[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=2)[C@@H:29]([CH2:48][O:49][CH2:50][C:51]2[CH:56]=[CH:55][CH:54]=[CH:53][CH:52]=2)[O:28][C:26]1=[O:27])[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.[Cl-].[NH4+]>C1COCC1.CCCCCC>[CH2:17]([O:24][C@@H:25]1[C@@H:31]([O:32][CH2:33][C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[C@H:30]([O:40][CH2:41][C:42]2[CH:43]=[CH:44][CH:45]=[CH:46][CH:47]=2)[C@@H:29]([CH2:48][O:49][CH2:50][C:51]2[CH:52]=[CH:53][CH:54]=[CH:55][CH:56]=2)[O:28][C:26]1([C:7]1[CH:8]=[C:9]([CH3:16])[CH:10]=[CH:11][C:12]=1[O:13][CH2:14][CH3:15])[OH:27])[C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1

참가 물질

7

반응물 4

HCID 25517Ammonium ChlorideHCID 10907626(3R,4S,5R,6R)-3,4,5-Tris(benzyloxy)-6-((benzyloxy)methyl)oxan-2-oneHCID 229962372-Bromo-1-ethoxy-4-methylbenzeneHCID 178418339Butyllithium

생성물 1

HCID 58786166HCID 58786166, 화합물수율 37.1%

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매2회HCID 8058Hexane용매

실험 절차

A 1.6 M hexane solution of n-butyl lithium (11 ml) was added dropwise to a solution of 3-bromo-4-ethoxytoluene (3.6 g) in THF (50 ml) at −78° C. and the mixture was stirred for 15 minutes. Then, a solution of 2,3,4,6-tetra-O-benzyl-D-(+)-glucono-1,5-lactone (7.6 g) in THF (10 ml) was added dropwise to the reaction mixture and the mixture was stirred for 2.5 hours. Saturated aqueous solution of ammonium chloride was added to the reaction mixture and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous sodium sulfate. After filtration, the filtrate was concentrated. The resulting precipitates were collected by filtration to obtain 2,3,4,6-tetra-O-benzyl-1-C-(2-ethoxy-5-methylphenyl)-D-glucopyranose (3.53 g).

후처리

  1. stirringthe mixture was stirred for 2.5 hours
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationAfter filtration
  6. concentrationthe filtrate was concentrated
  7. customThe resulting precipitates
  8. filtrationwere collected by filtration

출처 및 근거

ORD 기록
ord-72caac0d58c6492aaca3354c3bb190e9
출처 데이터셋
uspto-grants-2007_01
특허 번호
US07169761B2

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