Dichloromethane methanol → 2,6-Dichloro-5-methoxypyrimidine-4-carbaldehyde

HRID 1504928

반응식

HRID 1504928 반응식
[Cl:1][C:2]1[N:7]=[C:6]([CH:8]=C)[C:5]([O:10][CH3:11])=[C:4]([Cl:12])[N:3]=1.ClCCl.C[OH:17]>>[Cl:1][C:2]1[N:7]=[C:6]([CH:8]=[O:17])[C:5]([O:10][CH3:11])=[C:4]([Cl:12])[N:3]=1

참가 물질

3

반응물 2

HCID 21226129Dichloromethane methanolHCID 866893262,4-Dichloro-5-methoxy-6-vinylpyrimidine

생성물 1

HCID 866893302,6-Dichloro-5-methoxypyrimidine-4-carbaldehyde수율 100%

반응 조건

온도
-78 °C

실험 절차

The solution of 2,6-dichloro-5-methoxy-4-vinyl pyrimidine (50 g, 0.24 mol) in dichloromethane:methanol (4:1, 2 L), prepared by Example 1, was cooled to −78° C. Ozone gas was bubbled through for 5 h. The reaction was quenched with dimethyl sulfide (50 mL). The mixture was slowly warmed to room temperature and concentrated under reduced pressure at 40° C. to provide a crude material comprising the title compound (50.5 g, 100% yield); HPLC (85% acetonitrile buffered with 0.1% v/v acetic acid. The title compound was not isolated from the crude material.

후처리

  1. customOzone gas was bubbled through for 5 h
  2. customThe reaction was quenched with dimethyl sulfide (50 mL)
  3. temperatureThe mixture was slowly warmed to room temperature
  4. concentrationconcentrated under reduced pressure at 40° C.
  5. customto provide a crude material

출처 및 근거

ORD 기록
ord-05c0fb448cce4a4eaa8793cfe0814d59
출처 데이터셋
uspto-grants-2015_12
특허 번호
US09216958B2

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