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1,2-Dimethoxyethane → 5-(6-Butylamino-imidazo[1,2-b]pyridazin-3-yl)-indan-1-one

HRID 870676
ノート
印刷プレビュー

反応式

HRID 870676 の反応式
Br[C:2]1[N:6]2[N:7]=[C:8]([NH:11][CH2:12][CH2:13][CH2:14][CH3:15])[CH:9]=[CH:10][C:5]2=[N:4][CH:3]=1.CC1(C)C(C)(C)OB([C:24]2[CH:25]=[C:26]3[C:30](=[CH:31][CH:32]=2)[C:29](=[O:33])[CH2:28][CH2:27]3)O1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].COCCOC>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].O>[CH2:12]([NH:11][C:8]1[CH:9]=[CH:10][C:5]2[N:6]([C:2]([C:24]3[CH:25]=[C:26]4[C:30](=[CH:31][CH:32]=3)[C:29](=[O:33])[CH2:28][CH2:27]4)=[CH:3][N:4]=2)[N:7]=1)[CH2:13][CH2:14][CH3:15]
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 4

HCID 80711,2-DimethoxyethaneHCID 62657Potassium Phosphate, TribasicHCID 185417105-(tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-1H-inden-1-oneHCID 866963223-Bromo-6-(butylamino)imidazo[1,2-b]pyridazine

生成物 1

HCID 866963775-(6-Butylamino-imidazo[1,2-b]pyridazin-3-yl)-indan-1-one収率 85.3%

試薬・触媒・溶媒 2

HCID 44119782Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)触媒
HCID 962Water溶媒

反応条件

温度
80 °C

実験手順

A mixture of 3-bromo-N-butylimidazo[1,2-b]pyridazin-6-amine (400 mg, 1.5 mmol), 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-1H-inden-1-one (770 mg, 3.0 mmol), dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium (II) dichloromethane adduct (240 mg, 0.30 mmol), potassium phosphate (1.0 g, 4.5 mmol), DME (6 mL) and H2O (2 mL) was heated in a sealed vessel at 80° C. for 12 h. The reaction was cooled to RT, then the organic layer was separated and concentrated under reduced pressure to afford an oil that was purified by flash chromatography (SiO2) to afford 5-(6-butylamino-imidazo[1,2-b]pyridazin-3-yl)-indan-1-one (410 mg, 85%) as a pink solid: 1H NMR (400 MHz, DMSO-d6) δ ppm 8.52 (s, 1H), 8.22 (d, J=8.1 Hz, 1H), 8.07 (s, 1H), 7.78 (s, 1H), 7.65 (d, J=8.1 Hz, 1H), 7.17 (t, J=5.4 Hz, 1H), 6.75 (d, J=9.6 Hz, 1H), 3.22-3.42 (m, 3H), 3.05-3.18 (m, 2H), 2.58-2.71 (m, 2H), 1.58-1.73 (m, 2H), 1.34-1.51 (m, 2H), 0.89-1.00 (m, 3H); LCMS (ESI) m/e 321.2 [(M+H)+, calcd for C19H21N4O 321.2].

後処理

  1. temperatureThe reaction was cooled to RT
  2. customthe organic layer was separated
  3. concentrationconcentrated under reduced pressure
  4. customto afford an oil that
  5. customwas purified by flash chromatography (SiO2)

出典と根拠

ORDレコード
ord-ab9437289b1e42489a197ba131207848
出典データセット
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08969565B2

反応ノート

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