Water → 6-Phenoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-ylamine

HRID 657851노트

반응식

HRID 657851 반응식
Br.Cl[C:3]1[CH:4]=[CH:5][C:6]2[N:7]([C:9]([NH2:12])=[N:10][N:11]=2)[N:8]=1.[O-:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1.[Na+].O>CN1C(=O)CCC1>[O:13]([C:3]1[CH:4]=[CH:5][C:6]2[N:7]([C:9]([NH2:12])=[N:10][N:11]=2)[N:8]=1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1

참가 물질

5

반응물 3

HCID 962WaterHCID 4445035Phenolate SodiumHCID 866507946-Chloro-[1,2,4]triazolo[4,3-b]pyridazin-3-ylamine hydrobromide

생성물 1

HCID 581369666-Phenoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-ylamine수율 20.9%

시약·촉매·용매 1

HCID 13387N-methyl-2-pyrrolidone용매

실험 절차

6-Chloro-[1,2,4]triazolo[4,3-b]pyridazin-3-ylamine hydrobromide (W2.001; 200 mg) were initially charged dissolved in NMP (4 ml). Thereafter, sodium phenoxide (185 mg) was introduced at RT. After stirring at RT for one hour, the reaction was completed by heating to 55° C. for 2 h. Subsequently, the mixture was admixed with water and extracted three times with dichloromethane. The combined organic phases were dried over sodium sulfate and, after the desiccant had been filtered off, dried under reduced pressure. The crude product was purified using silica gel with a dichloromethane/methanol gradient. 38 mg of the title compound were obtained in solid form.

후처리

  1. temperatureby heating to 55° C. for 2 h
  2. extractionextracted three times with dichloromethane
  3. dry with materialThe combined organic phases were dried over sodium sulfate
  4. filtrationafter the desiccant had been filtered off
  5. customdried under reduced pressure
  6. customThe crude product was purified

출처 및 근거

ORD 기록
ord-ccdafbb24465423aaf692fe661b367e2
출처 데이터셋
uspto-grants-2011_12
특허 번호
US08076336B2

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