Phosphorus oxychloride → 4-Chloro-1-(4-fluorobenzyl)-6-methyl-2-oxo-1,2-dihydro-quinoline-3-carbonitrile

HRID 970570노트

반응식

HRID 970570 반응식
C1([NH:7][C:8]([C:10]2[C:11](=[O:30])[N:12]([CH2:22][C:23]3[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=3)[C:13]3[C:18]([C:19]=2O)=[CH:17][C:16]([CH3:21])=[CH:15][CH:14]=3)=O)CCCCC1.P(Cl)(Cl)([Cl:33])=O>>[Cl:33][C:19]1[C:18]2[C:13](=[CH:14][CH:15]=[C:16]([CH3:21])[CH:17]=2)[N:12]([CH2:22][C:23]2[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=2)[C:11](=[O:30])[C:10]=1[C:8]#[N:7]

참가 물질

3

반응물 2

HCID 24813Phosphorus oxychlorideHCID 694790651-(4-Fluorobenzyl)-4-hydroxy-6-methyl-2-oxo-1,2-dihydro-quinoline-3-carboxylic acid cyclohexylamide

생성물 1

HCID 210819584-Chloro-1-(4-fluorobenzyl)-6-methyl-2-oxo-1,2-dihydro-quinoline-3-carbonitrile수율 47%

실험 절차

A solution of Compound 19 (5 g, 12.24 mmol) in 30 mL neat phosphorus oxychloride was heated at 100° C. for 3 h. The solvent was evaporated under reduced pressure. The residue was suspended in ice water and neutralized by solid sodium bicarbonate. The solids formed were filtered, washed by water, and purified by flash chromatography eluting with 1% methanol in dichloromethane to yield 1.90 g (47%) of yellow solids. M.P. 206° C. 1H NMR (DMSO-d6): δ 2.40 (s, 3H), 5.52 (s, 2H), 7.12-7.15 (m, 2H), 7.30-7.33 (m, 2H), 7.46 (d, J=8.7 Hz, 1H), 7.64 (dd, J=1.2, 8.7 Hz, 1H), 7.89 (d, J=1.2 Hz, 1H). EIMS m/z 327 (M+1).

후처리

  1. customThe solvent was evaporated under reduced pressure
  2. customThe solids formed
  3. filtrationwere filtered
  4. washwashed by water
  5. custompurified by flash chromatography
  6. washeluting with 1% methanol in dichloromethane

출처 및 근거

ORD 기록
ord-c61367808acb4b77a4a1aca81f18231b
출처 데이터셋
uspto-grants-2007_12
특허 번호
US07312221B2

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