Aniline → 3-Phenylamino-pyrazine-2-carboxylic acid (2-methyl-pyridin-4-yl)-amide

HRID 550577

반응식

HRID 550577 반응식
[CH3:1][C:2]1[CH:7]=[C:6]([NH:8][C:9]([C:11]2[C:16](Br)=[N:15][CH:14]=[CH:13][N:12]=2)=[O:10])[CH:5]=[CH:4][N:3]=1.[NH2:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1.C1(P(C2C=CC=CC=2)C2C3OC4C(=CC=CC=4P(C4C=CC=CC=4)C4C=CC=CC=4)C(C)(C)C=3C=CC=2)C=CC=CC=1.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCOCC1>[CH3:1][C:2]1[CH:7]=[C:6]([NH:8][C:9]([C:11]2[C:16]([NH:18][C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)=[N:15][CH:14]=[CH:13][N:12]=2)=[O:10])[CH:5]=[CH:4][N:3]=1

참가 물질

6

반응물 4

HCID 6115AnilineHCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 665243483-bromo-N-(2-methylpyridin-4-yl)pyrazine-2-carboxamide

생성물 1

HCID 119966313-Phenylamino-pyrazine-2-carboxylic acid (2-methyl-pyridin-4-yl)-amide

시약·촉매·용매 1

HCID 312751,4-Dioxane용매

반응 조건

온도
150 °C

실험 절차

3-Bromo-pyrazine-2-carboxylic acid (2-methyl-pyridin-4-yl)-amide (130 mg, 0.44 mmol) and aniline (54 mg, 0.58 mmol) were dissolved in 4 mL dry dioxane. 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (51 mg, 0.09 mmol), cesium carbonate (290 mg, 0.89 mmol) and tri(dibenzylideneacetone)dipalladium chloroform complex (46 mg, 0.044 mmol) were added and the reaction mixture was stirred under microwave irradiation for 50 minutes at 150° C. The reaction mixture was then evaporated and purified by flash chromatography on silica gel (heptane/ethyl acetate 1:1->100% ethyl acetate). The desired product was obtained as a yellow solid (47 mg, 35%), MS: m/e=306.2 (M+H+).

후처리

  1. customThe reaction mixture was then evaporated
  2. custompurified by flash chromatography on silica gel (heptane/ethyl acetate 1:1->100% ethyl acetate)

출처 및 근거

ORD 기록
ord-c245e1be8ece41e185316c67078959bf
출처 데이터셋
uspto-grants-2011_05
특허 번호
US07947685B2

연결된 노트

불러오는 중…