Phosphorus oxychloride → Imidazo(1,5-a)pyridine

HRID 66023노트

반응식

HRID 66023 반응식
[CH:1]([NH:3][CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][N:6]=1)=O.P(Cl)(Cl)(Cl)=O>>[CH:4]1[N:3]=[CH:1][N:6]2[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=12

참가 물질

3

반응물 2

HCID 24813Phosphorus oxychlorideHCID 12228441N-Pyridin-2-ylmethyl-formamide

생성물 1

HCID 274090Imidazo(1,5-a)pyridine

실험 절차

To 13.6 g. of 2-formamidomethylpyridine in a round-bottom flask is added 25 ml. of phosphorous oxychloride. Following the exothermic reaction, the reaction mixture is cooled to room temperature, and quenched on crushed ice. The aqueous mixture is treated with sufficient 20% aqueous sodium hydroxide solution to provide a pH of 9-10, and the liberated product extracted into chloroform (3 × 300 ml.). The extracts are combined, dried over sodium sulfate and concentrated to give imidazo[1,5-a]pyridine as a light brown oil, 14.0 g.

후처리

  1. customthe exothermic reaction
  2. customquenched
  3. customon crushed ice
  4. additionThe aqueous mixture is treated with sufficient 20% aqueous sodium hydroxide solution
  5. customto provide a pH of 9-10
  6. extractionthe liberated product extracted into chloroform (3 × 300 ml.)
  7. dry with materialdried over sodium sulfate
  8. concentrationconcentrated

출처 및 근거

ORD 기록
ord-0fcbfa56acfc45d5b043ecb549bc4a05
출처 데이터셋
uspto-grants-1978_12
특허 번호
US04129567

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