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2-Chloro-6-(tributylstannyl)pyrazine → 3-(6-chloropyrazin-2-yl)-5-(2,6-difluorophenyl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole

HRID 1529283
ノート
印刷プレビュー

反応式

HRID 1529283 の反応式
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[CH:10]=[C:11]2[C:15](=[CH:16][CH:17]=1)[N:14]([CH:18]1[CH2:23][CH2:22][CH2:21][CH2:20][O:19]1)[N:13]=[C:12]2I.[Cl:25][C:26]1[CH:31]=[N:30][CH:29]=[C:28]([Sn](CCCC)(CCCC)CCCC)[N:27]=1>CN(C=O)C.C(Cl)Cl.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.[Cu]I>[Cl:25][C:26]1[N:27]=[C:28]([C:12]2[C:11]3[C:15](=[CH:16][CH:17]=[C:9]([C:3]4[C:2]([F:1])=[CH:7][CH:6]=[CH:5][C:4]=4[F:8])[CH:10]=3)[N:14]([CH:18]3[CH2:23][CH2:22][CH2:21][CH2:20][O:19]3)[N:13]=2)[CH:29]=[N:30][CH:31]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

7

反応物 2

HCID 117740572-Chloro-6-(tributylstannyl)pyrazineHCID 679597535-(2,6-difluoro-phenyl)-3-iodo-1-(tetrahydro-pyran-2-yl)-1H-indazole

生成物 1

HCID 867097633-(6-chloropyrazin-2-yl)-5-(2,6-difluorophenyl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole収率 98%

試薬・触媒・溶媒 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒
HCID 178418397
HCID 178418397、化合物
触媒
HCID 6228Dimethylformamide溶媒
HCID 6344Dichloromethane溶媒

反応条件

温度
105 °C

実験手順

A glass microwave reaction vessel was charged with 5-(2,6-difluorophenyl)-3-iodo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole 14 (1.00 g, 2.272 mmol) and 2-chloro-6-(tributylstannyl)pyrazine 1b (1.375 g, 3.41 mmol) in DMF (9 mL) followed by Pd(PPh3)4 (0.131 g, 0.114 mmol) and CuI (7.70 μL, 0.227 mmol). The reaction mixture was stirred and heated in an Initiator microwave reactor (Personal Chemistry, Biotage AB, Inc., Uppsala, Sweden) at 105° C. for 1 h. The resulting mixture was diluted with DCM. The organic layer was separated, washed with water, dried, filtered and concentrated. The residue was purified by silica gel chromatography (eluting with 0-15% EtOAc in Hexanes) to give 3-(6-chloropyrazin-2-yl)-5-(2,6-difluorophenyl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (0.95 g, 2.22 mmol, 98% yield) as a yellow solid. MS (ESI, pos. ion) m/z: 427.0 (M+1).

後処理

  1. customA glass microwave reaction vessel
  2. customThe organic layer was separated
  3. washwashed with water
  4. customdried
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was purified by silica gel chromatography (eluting with 0-15% EtOAc in Hexanes)

出典と根拠

ORDレコード
ord-909bc356e6084b1b923649a49c73a2b9
出典データセット
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09090593B2

反応ノート

読み込み中…

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