(4-Methoxyphenyl)boronic acid → 2-Chloro-6-(4-methoxyphenyl)-4-(4-phenoxyphenyl)nicotinonitrile

HRID 81020노트

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HRID 81020 반응식
[Cl:1][C:2]1[N:9]=[C:8](Cl)[CH:7]=[C:6]([C:11]2[CH:16]=[CH:15][C:14]([O:17][C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)=[CH:13][CH:12]=2)[C:3]=1[C:4]#[N:5].[CH3:24][O:25][C:26]1[CH:31]=[CH:30][C:29](B(O)O)=[CH:28][CH:27]=1.O.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>CN(C)C=O.C(OCC)(=O)C.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[Pd]>[Cl:1][C:2]1[N:9]=[C:8]([C:29]2[CH:30]=[CH:31][C:26]([O:25][CH3:24])=[CH:27][CH:28]=2)[CH:7]=[C:6]([C:11]2[CH:12]=[CH:13][C:14]([O:17][C:18]3[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=3)=[CH:15][CH:16]=2)[C:3]=1[C:4]#[N:5]

참가 물질

7

반응물 3

HCID 201262(4-Methoxyphenyl)boronic acidHCID 22031701Potassium phosphate, tribasic, monohydrateHCID 866656822,6-Dichloro-4-(4-phenoxyphenyl)nicotinonitrile

생성물 1

HCID 866656812-Chloro-6-(4-methoxyphenyl)-4-(4-phenoxyphenyl)nicotinonitrile수율 68%

시약·촉매·용매 3

HCID 11979704Tetrakis(triphenylphosphine)palladium촉매HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

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온도
100 °C

실험 절차

A mixture of 2,6-dichloro-4-(4-phenoxyphenyl)nicotinonitrile (110 mg, 0.322 mmol), 4-methoxyphenylboronic acid (53.9 mg, 0.355 mmol), palladium tetrakis(triphenylphosphine) (16.30 mg, 0.016 mmol) and potassium phosphate tribasic monohydrate (0.484 mL, 0.967 mmol) in N,N-dimethylformamide (3 mL) was heated under nitrogen to 100° C. for 15 h. After cooling to room temperature, the mixture was diluted with ethyl acetate (80 mL), washed with water (15 mL), brine (15 mL), dried (MgSO4), and concentrated. Silica gel chromatography, loading with toluene and eluting with 5-30% ethyl acetate in hexanes, gave 2-chloro-6-(4-methoxyphenyl)-4-(4-phenoxyphenyl)nicotinonitrile as white solid (90 mg, 68% yield). 1H NMR (500 MHz, CDCl3) δ ppm 7.94-8.22 (2H, m), 7.69 (1H, s), 7.56-7.65 (2H, m), 7.42 (2H, t, J=7.97 Hz), 7.18-7.26 (1H, m), 7.06-7.19 (4H, m), 7.02 (2H, δ, J=8.80 Hz), 3.90 (3H, s); MS (ES+) m/z: 413 (M+H); LC retention time: 4.423 min (analytical HPLC Method A).

후처리

  1. temperatureAfter cooling to room temperature
  2. washwashed with water (15 mL), brine (15 mL)
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated
  5. washeluting with 5-30% ethyl acetate in hexanes

출처 및 근거

ORD 기록
ord-4bea9dab0c4d44ed903018e078dbd743
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08846673B2

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