Methanol → methyl 4-methylnicotinate

HRID 1854359노트

반응식

HRID 1854359 반응식
[CH3:1][C:2]1[C:7]([C:8]([OH:10])=[O:9])=[CH:6][N:5]=[CH:4][CH:3]=1.OS(O)(=O)=O.[CH3:16]O>>[CH3:1][C:2]1[C:7]([C:8]([O:10][CH3:16])=[O:9])=[CH:6][N:5]=[CH:4][CH:3]=1

참가 물질

4

반응물 3

HCID 887MethanolHCID 1118Sulfuric AcidHCID 2291634-Methylnicotinic acid

생성물 1

HCID 10877301methyl 4-methylnicotinate수율 94%

실험 절차

A solution of 4-methylnicotinic acid (2.00 g, 14.6 mmol) and concentrated H2SO4 (4.66 mL, 87.6 mmol) in MeOH (50 mL) was heated at about 60° C. for about 16 h. The reaction was concentrated under reduced pressure then partitioned with EtOAc (150 mL) and saturated aqueous NaHCO3 (200 mL). The organic layer was dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure to a constant weight to afford methyl 4-methylnicotinate as a clear liquid (2.30 g, 94%): LC/MS (Table 2, Method a) Rt=1.67 min; MS m/z: 152 (M+H)+.

후처리

  1. concentrationThe reaction was concentrated under reduced pressure
  2. customthen partitioned with EtOAc (150 mL) and saturated aqueous NaHCO3 (200 mL)
  3. dry with materialThe organic layer was dried over anhydrous Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure to a constant weight

출처 및 근거

ORD 기록
ord-286200668d944bc286c2bb62d44d5be1
출처 데이터셋
uspto-grants-2015_02
특허 번호
US08962629B2

반응 노트

불러오는 중…