1,4-Dioxane → 7-Chloro-3-(2-chloro-4-fluorophenyl)thieno[3,2-b]pyridine

HRID 871174ノート

反応式

HRID 871174 の反応式
Br[C:2]1[C:6]2=[N:7][CH:8]=[CH:9][C:10]([Cl:11])=[C:5]2[S:4][CH:3]=1.[Cl:12][C:13]1[CH:18]=[C:17]([F:19])[CH:16]=[CH:15][C:14]=1B(O)O.O1CCOCC1.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].C(Cl)Cl>[Cl:11][C:10]1[CH:9]=[CH:8][N:7]=[C:6]2[C:2]([C:14]3[CH:15]=[CH:16][C:17]([F:19])=[CH:18][C:13]=3[Cl:12])=[CH:3][S:4][C:5]=12

参加物

7

反応物 4

HCID 312751,4-DioxaneHCID 62657Potassium Phosphate, TribasicHCID 177502292-Chloro-4-fluorobenzeneboronic acidHCID 867304243-Bromo-7-chlorothieno[3,2-b]pyridine

生成物 1

HCID 867304277-Chloro-3-(2-chloro-4-fluorophenyl)thieno[3,2-b]pyridine収率 80.2%

試薬・触媒・溶媒 2

HCID 178418807HCID 178418807、化合物触媒HCID 962Water溶媒

反応条件

温度
90 °C

実験手順

A vessel capable of sealing was charged with a mixture of 3-bromo-7-chlorothieno[3,2-b]pyridine (260 mg, 1.046 mmol), 2-chloro-4-fluorophenylboronic acid (274 mg, 1.569 mmol), PdCl2(dppf)-CH2Cl2 adduct (42.7 mg, 0.0.052 mmol), dioxane (8 mL), and a 2.0 M aqueous solution of K3PO4 (1.6 mL, 3.14 mmol) and was purged with nitrogen for 10 min. The vessel was sealed and heated at 90° C. for 3 h. Upon cooling, the reaction mixture was diluted with water and extracted with CH2Cl2. The combined organics were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The crude material was purified by BIOTAGE® eluting with 60%-100% CH2Cl2/hexanes at 30 mL/min. Concentration of appropriate fractions provided the title compound (250 mg, 80% yield) as a white solid. LC/MS: Example 103A @ 3.58 min (RT) (Condition G). MS (ES): m/z=297.89, [M+H]+.

後処理

  1. customThe vessel was sealed
  2. temperatureUpon cooling
  3. extractionextracted with CH2Cl2
  4. washThe combined organics were washed with brine
  5. dry with materialdried over anhydrous Na2SO4
  6. concentrationconcentrated under reduced pressure
  7. customThe crude material was purified by BIOTAGE®
  8. washeluting with 60%-100% CH2Cl2/hexanes at 30 mL/min

出典と根拠

ORDレコード
ord-0b9dab894cac49b19fcbbece98fbd495
出典データセット
uspto-grants-2015_03
特許番号
US08969586B2

反応ノート

読み込み中…