Dimethylformamide → 3-{[3-(Aminomethyl)-6-chloro-2-fluorophenyl]oxy}-4-chloro-5-fluorobenzonitrile

HRID 1874916ノート

反応式

HRID 1874916 の反応式
Br[C:2]1[CH:3]=[C:4]([F:20])[C:5]([Cl:19])=[C:6]([O:8][C:9]2[C:10]([F:18])=[C:11]([CH2:16][NH2:17])[CH:12]=[CH:13][C:14]=2[Cl:15])[CH:7]=1.[C:21]([Zn]C#N)#[N:22].CN(C=O)C>C(O)CC.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[NH2:17][CH2:16][C:11]1[C:10]([F:18])=[C:9]([O:8][C:6]2[CH:7]=[C:2]([CH:3]=[C:4]([F:20])[C:5]=2[Cl:19])[C:21]#[N:22])[C:14]([Cl:15])=[CH:13][CH:12]=1

参加物

6

反応物 3

HCID 6228DimethylformamideHCID 68480394({3-[(5-Bromo-2-chloro-3-fluorophenyl)oxy]-4-chloro-2-fluorophenyl}methyl)amineHCID 178514179HCID 178514179、化合物

生成物 1

HCID 684872203-{[3-(Aminomethyl)-6-chloro-2-fluorophenyl]oxy}-4-chloro-5-fluorobenzonitrile収率 89.8%

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 10311-Propanol溶媒

反応条件

温度
120 °C

実験手順

({3-[(5-bromo-2-chloro-3-fluorophenyl)oxy]-4-chloro-2-fluorophenyl}methyl)amine (3.00 g, 7.83 mmol) was combined with dicyanozinc (0.460 g, 3.92 mmol) and tetrakis(triphenylphosphine)palladium(0) (0.453 g, 0.392 mmol) in n-propanol (15 mL) and heated at 120° C. for 25 min in a microwave reactor under an inert atmosphere. DMF (8 mL) was added and the reaction mixture was again heated at 120° C. for 90 min in a microwave reactor at which time LC-MS indicated complete conversion. The reaction mixture was concentrated to remove the n-propanol, diluted with EtOAc, washed four times with saturated aqueous NaHCO3, dried over MgSO4, filtered and concentrated to dryness. The residue was purified on 80 g silica gel eluted successively with EtOAc followed by 0 to 10% CH3OH/DCM to give 3-{[3-(aminomethyl)-6-chloro-2-fluorophenyl]oxy}-4-chloro-5-fluorobenzonitrile (1.16 g, 3.52 mmol, 45.0% yield) as a pale yellow oil which crystallized on standing. 1H NMR (400 MHz, DMSO-d6) δ ppm 7.92 (dd, J=8.65, 1.51 Hz, 1H), 7.47-7.58 (m, 2 H), 7.25 (s, 1H), 3.77 (s, 2H), 1.93 (br. s., 2H). LC-MS (ES−) m/z 326.96, 329.05 [M−1]. LC-MS (ES+) m/z 329.00, 330.96 [M+H].

後処理

  1. temperaturethe reaction mixture was again heated at 120° C. for 90 min in a microwave reactor at which time LC-MS
  2. concentrationThe reaction mixture was concentrated
  3. customto remove the n-propanol
  4. additiondiluted with EtOAc
  5. washwashed four times with saturated aqueous NaHCO3
  6. dry with materialdried over MgSO4
  7. filtrationfiltered
  8. concentrationconcentrated to dryness
  9. customThe residue was purified on 80 g silica gel
  10. washeluted successively with EtOAc

出典と根拠

ORDレコード
ord-7350920764824a688229bb68c81f2da3
出典データセット
uspto-grants-2012_11
特許番号
US08304419B2

反応ノート

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