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Triethylamine → 2-(4-bromo-5-chloro-2-methoxyphenyl)-2,4-dihydro-5-(5-bromothien-2-yl)-3H-1,2,4-triazol-3-one

HRID 2260926
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HRID 2260926 반응식
[Br:1][C:2]1[C:7]([Cl:8])=[CH:6][C:5]([NH:9][NH2:10])=[C:4]([O:11][CH3:12])[CH:3]=1.[Br:13][C:14]1[S:18][C:17]([C:19](=O)C(O)=O)=[CH:16][CH:15]=1.C([N:26]([CH2:29]C)CC)C.C1(P(N=[N+]=[N-])(C2C=CC=CC=2)=[O:38])C=CC=CC=1>C(#N)C>[Br:1][C:2]1[C:7]([Cl:8])=[CH:6][C:5]([N:9]2[C:29](=[O:38])[NH:26][C:19]([C:17]3[S:18][C:14]([Br:13])=[CH:15][CH:16]=3)=[N:10]2)=[C:4]([O:11][CH3:12])[CH:3]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 8471TriethylamineHCID 199401P,P-Diphenylphosphinic azideHCID 144525865-Bromothiophene 2-Oxoacetic AcidHCID 22997648(4-Bromo-5-chloro-2-methoxyphenyl)hydrazine2회

생성물 1

HCID 1358250532-(4-bromo-5-chloro-2-methoxyphenyl)-2,4-dihydro-5-(5-bromothien-2-yl)-3H-1,2,4-triazol-3-one수율 75%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

(4-Bromo-5-chloro-2-methoxyphenyl)hydrazine (Intermediate 2) (5.0 g) and 2-(5-bromothien-2-yl)glyoxylic acid (4.7 g) were refluxed in acetonitrile (15-25 ml/mmol starting material) for 30-60 minutes. The reaction was cooled to room temperature. Triethylamine (2.22 g) and diphenylphosphorylazide (6.05 g) were added, and the reaction was heated at reflux 3-18 hours. After cooling to room temperature, solids were filtered and washed with acetonitrile and ether to yield (75%) 2-(4-bromo-5-chloro-2-methoxyphenyl)-2,4-dihydro-5-(5-bromothien-2-yl)-3H-1,2,4-triazol-3-one (Intermediate 3).

후처리

  1. temperaturethe reaction was heated
  2. temperatureat reflux 3-18 hours
  3. temperatureAfter cooling to room temperature
  4. filtrationsolids were filtered
  5. washwashed with acetonitrile and ether

출처 및 근거

ORD 기록
ord-d25522b44d8649a587ac5c428f8dee3f
출처 데이터셋
uspto-grants-2010_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07846671B2

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