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Potassium Carbonate → Ethyl (Z)-alpha-((2-(tert-butoxy)-1,1-dimethyl-2-oxoethoxy)imino)-2-(tritylamino)thiazol-4-acetate

HRID 1590270
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HRID 1590270 반응식
[OH:1]/[N:2]=[C:3](/[C:9]1[N:10]=[C:11]([NH:14][C:15]([C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[S:12][CH:13]=1)\[C:4]([O:6][CH2:7][CH3:8])=[O:5].C(=O)([O-])[O-].[K+].[K+].[C:40]([O:44][C:45](=[O:50])[C:46](Br)([CH3:48])[CH3:47])([CH3:43])([CH3:42])[CH3:41]>CS(C)=O>[C:40]([O:44][C:45]([C:46]([O:1]/[N:2]=[C:3](/[C:9]1[N:10]=[C:11]([NH:14][C:15]([C:28]2[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=2)([C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=2)[C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[S:12][CH:13]=1)\[C:4]([O:6][CH2:7][CH3:8])=[O:5])([CH3:48])[CH3:47])=[O:50])([CH3:43])([CH3:42])[CH3:41]
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참가 물질

5

반응물 3

HCID 11430Potassium CarbonateHCID 90290tert-Butyl 2-bromo-2-methylpropionateHCID 6410761(Z)-Ethyl 2-(hydroxyimino)-2-(2-(tritylamino)thiazol-4-yl)acetate

생성물 1

HCID 12822365Ethyl (Z)-alpha-((2-(tert-butoxy)-1,1-dimethyl-2-oxoethoxy)imino)-2-(tritylamino)thiazol-4-acetate수율 74.8%

시약·촉매·용매 1

HCID 679
Dimethyl Sulfoxide
용매

실험 절차

To ethyl (Z)-2-(hydroxyimino)-2-[2-(triphenylmethyl)aminothiazol-4-yl]acetate (46 g) were added potassium carbonate (27.6 g), tert-butyl-2-bromo-2-methylpropionate(24.1 g) and dimethylsulfoxide (300 ml), and then the solution was stirred for 6 hours at room temperature. Afterwards distilled water (100 ml) was added therein, the solution was stirred again for an hour. The precipitates were filtered, washed with distilled water(500 ml), and dried under reduced pressure to give the above-indicated compound(45.1 g) as a white solid.

후처리

  1. distillationAfterwards distilled water (100 ml)
  2. additionwas added
  3. stirringthe solution was stirred again for an hour
  4. filtrationThe precipitates were filtered
  5. washwashed with distilled water(500 ml)
  6. customdried under reduced pressure

출처 및 근거

ORD 기록
ord-23b749df836d4d2bb0d67a995540b276
출처 데이터셋
uspto-grants-1993_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05202315

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