2,4-Dichloro-5-methoxyaniline → 8-(2-Chloroethoxy)-4-(2,4-dichloro-5-methoxyanilino)-7-methoxybenzo[b][1,8]naphthyridine-3-carbonitrile

HRID 989394

반응식

HRID 989394 반응식
Cl[C:2]1[C:3]2[CH:4]=[C:5]3[CH:17]=[C:16]([O:18][CH3:19])[C:15]([O:20][CH2:21][CH2:22][Cl:23])=[CH:14][C:6]3=[N:7][C:8]=2[N:9]=[CH:10][C:11]=1[C:12]#[N:13].[Cl:24][C:25]1[CH:31]=[C:30]([Cl:32])[C:29]([O:33][CH3:34])=[CH:28][C:26]=1[NH2:27]>C(OCCO)C>[Cl:23][CH2:22][CH2:21][O:20][C:15]1[C:16]([O:18][CH3:19])=[CH:17][C:5]2[C:6]([CH:14]=1)=[N:7][C:8]1[N:9]=[CH:10][C:11]([C:12]#[N:13])=[C:2]([NH:27][C:26]3[CH:28]=[C:29]([O:33][CH3:34])[C:30]([Cl:32])=[CH:31][C:25]=3[Cl:24])[C:3]=1[CH:4]=2

참가 물질

4

반응물 2

HCID 14766362,4-Dichloro-5-methoxyanilineHCID 219564934-Chloro-8-(2-chloroethoxy)-7-methoxybenzo[b][1,8]naphthyridine-3-carbonitrile

생성물 1

HCID 101641738-(2-Chloroethoxy)-4-(2,4-dichloro-5-methoxyanilino)-7-methoxybenzo[b][1,8]naphthyridine-3-carbonitrile수율 41.2%

시약·촉매·용매 1

HCID 8076Glycol monoethyl ether용매

실험 절차

A mixture of 4-chloro-8-(2-chloroethoxy)-7-methoxybenzo[b][1,8]naphthyridine-3-carbonitrile (500 mg, 1.43 mmol) and 2,4-dichloro-5-methoxyaniline (460 mg, 2.39 mmol) in 40 mL of 2-ethoxyethanol is heated at reflux for 20 minutes then cooled to room temperature. The solution is partitioned between ethyl acetate and saturated sodium bicarbonate. The organic layer is dried over magnesium sulfate, filtered and concentrated in vacuo. The residue is partitioned between ethyl acetate and an aqueous solution of sodium hydroxide and sodium bicarbonate (pH 14). The organic layer is dried over magnesium sulfate, filtered and concentrated in vacuo. Ethyl acetate and diethyl ether are added to the residue and the resultant orange solid is collected by filtration to provide 297 mg (41%) of 8-(2-chloroethoxy)-4-(2,4-dichloro-5-methoxyanilino)-7-methoxybenzo[b][1,8]naphthyridine-3-carbonitrile, mp 227-230° C. dec.

후처리

  1. temperatureis heated
  2. temperatureat reflux for 20 minutes
  3. customThe solution is partitioned between ethyl acetate and saturated sodium bicarbonate
  4. dry with materialThe organic layer is dried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue is partitioned between ethyl acetate
  8. dry with materialThe organic layer is dried over magnesium sulfate
  9. filtrationfiltered
  10. concentrationconcentrated in vacuo
  11. additionEthyl acetate and diethyl ether are added to the residue
  12. filtrationthe resultant orange solid is collected by filtration

출처 및 근거

ORD 기록
ord-e89bf325323a4cd4adb6b223b54b73b0
출처 데이터셋
uspto-grants-2003_10
특허 번호
US06638929B2

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