Hydrochloric Acid → HCID 178481757, 화합물

HRID 1854509노트

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HRID 1854509 반응식
Cl[C:2]1[C:7]([CH:8]=O)=[CH:6][N:5]=[C:4]2[NH:10][CH:11]=[CH:12][C:3]=12.[CH3:13][NH:14][NH2:15].Cl.O>CCCCO>[CH3:13][N:14]1[C:2]2=[C:3]3[CH:12]=[CH:11][NH:10][C:4]3=[N:5][CH:6]=[C:7]2[CH:8]=[N:15]1

참가 물질

6

반응물 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 6061MethylhydrazineHCID 242292744-chloro-1H-pyrrolo[2,3-b]pyridine-5-carbaldehyde

생성물 1

HCID 178481757HCID 178481757, 화합물수율 74%

시약·촉매·용매 1

HCID 2631-Butanol용매

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온도
120 °C

실험 절차

4-Chloro-1H-pyrrolo[2,3-b]pyridine-5-carbaldehyde (1.37 g, 7.59 mmol, Adesis) and methylhydrazine (0.599 mL, 11.4 mmol) in n-BuOH (7 mL) were heated to about 95° C. After about 15 min, concentrated HCl (0.500 mL, 16.4 mmol) was added and the reaction mixture was heated to about 120° C. After about 4 h, water (10 mL) was added and the mixture was extracted with EtOAc (20 mL). The organic layer was separated and the aqueous layer was basified with saturated aqueous NaHCO3 to about pH 8 and extracted with EtOAc (2×20 mL). The combined organic layers were dried over anhydrous MgSO4, filtered, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (40 g column) eluting with a gradient of 5-60% EtOAc in heptane to give 1-methyl-1,6-dihydropyrazolo[3,4-d]pyrrolo[2,3-b]pyridine (0.960 g, 74%): LC/MS (Table 2, Method d) Rt=1.40 min; MS m/z: 173 (M+H)+.

후처리

  1. waitAfter about 4 h
  2. extractionthe mixture was extracted with EtOAc (20 mL)
  3. customThe organic layer was separated
  4. extractionextracted with EtOAc (2×20 mL)
  5. dry with materialThe combined organic layers were dried over anhydrous MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe residue was purified by silica gel chromatography (40 g column)
  9. washeluting with a gradient of 5-60% EtOAc in heptane

출처 및 근거

ORD 기록
ord-92ecc4cb07184c58b16af5abc77bfdcd
출처 데이터셋
uspto-grants-2015_02
특허 번호
US08962629B2

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