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Water → 4-(5-{3-[5-(4-Methoxy-phenyl)-oxazol-2-yl]-phenyl}-[1,3,4]thiadiazol-2-ylmethyl)-benzoic acid methyl ester

HRID 349452
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인쇄 미리보기

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HRID 349452 반응식
[CH3:1][O:2][C:3](=[O:36])[C:4]1[CH:9]=[CH:8][C:7]([CH2:10][C:11]([NH:13][NH:14][C:15](=O)[C:16]2[CH:21]=[CH:20][CH:19]=[C:18]([C:22]3[O:23][C:24]([C:27]4[CH:32]=[CH:31][C:30]([O:33][CH3:34])=[CH:29][CH:28]=4)=[CH:25][N:26]=3)[CH:17]=2)=O)=[CH:6][CH:5]=1.P12(SP3(SP(SP(S3)(S1)=S)(=S)S2)=S)=[S:38].O>O1CCOCC1>[CH3:1][O:2][C:3](=[O:36])[C:4]1[CH:9]=[CH:8][C:7]([CH2:10][C:11]2[S:38][C:15]([C:16]3[CH:21]=[CH:20][CH:19]=[C:18]([C:22]4[O:23][C:24]([C:27]5[CH:32]=[CH:31][C:30]([O:33][CH3:34])=[CH:29][CH:28]=5)=[CH:25][N:26]=4)[CH:17]=3)=[N:14][N:13]=2)=[CH:6][CH:5]=1
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 962WaterHCID 14817Phosphorus sulfide (P2S5)HCID 588048614-[2-(N'-{3-[5-(4-Methoxy-phenyl)-oxazol-2-yl]-benzoyl}-hydrazino)-2-oxo-ethyl]-benzoic Acid Methyl Ester

생성물 1

HCID 588048824-(5-{3-[5-(4-Methoxy-phenyl)-oxazol-2-yl]-phenyl}-[1,3,4]thiadiazol-2-ylmethyl)-benzoic acid methyl ester수율 73%

시약·촉매·용매 1

HCID 31275
1,4-Dioxane
용매

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온도
50 °C

실험 절차

To a suspension of 0.25 g (0.51 mmol) 4-[2-(N′-{3-[5-(4-Methoxy-phenyl)-oxazol-2-yl]-benzoyl}-hydrazino)-2-oxo-ethyl]-benzoic acid methyl ester from Preparation 8 in 10 mL dry dioxane was added P2S5 in one portion. The resulting mixture was warmed to 50° C. for 1 hour before cooling to room temperature and adding about 20 mL water. Stirred 2 hours and then filtered off solid product. Triturated in hot MeOH and filtered. Dissolved in THF and filtered through a plug of flash silica gel with THF eluent. Concentration gave 0.18 g (73%) desired product. Used directly in the procedure of Example B3 without characterization.

후처리

  1. temperaturebefore cooling to room temperature
  2. filtrationfiltered off solid product
  3. customTriturated in hot MeOH
  4. filtrationfiltered
  5. dissolutionDissolved in THF
  6. filtrationfiltered through a plug of flash silica gel with THF eluent
  7. concentrationConcentration

출처 및 근거

ORD 기록
ord-7b7aa2263f7d41a6a7670ed1d3a918a6
출처 데이터셋
uspto-grants-2007_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07179822B2

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