6-Chloro-4-iodopyridin-3-amine → 6-Chloro-4-((1-methylcyclopropyl)ethynyl)pyridin-3-amine

HRID 1044012ノート

反応式

HRID 1044012 の反応式
[Cl:1][C:2]1[N:7]=[CH:6][C:5]([NH2:8])=[C:4](I)[CH:3]=1.[C:10]([C:12]1([CH3:15])[CH2:14][CH2:13]1)#[CH:11]>CCN(CC)CC.[Cu]I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[Cl:1][C:2]1[N:7]=[CH:6][C:5]([NH2:8])=[C:4]([C:11]#[C:10][C:12]2([CH3:15])[CH2:14][CH2:13]2)[CH:3]=1

参加物

6

反応物 2

HCID 184070406-Chloro-4-iodopyridin-3-amineHCID 215905601-Ethynyl-1-methylcyclopropane

生成物 1

HCID 579081926-Chloro-4-((1-methylcyclopropyl)ethynyl)pyridin-3-amine収率 53%

試薬・触媒・溶媒 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 178418476HCID 178418476、化合物触媒HCID 8471Triethylamine溶媒

実験手順

To a solution of 6-chloro-4-iodopyridin-3-amine (7.0 g, 28 mmol) in Et3N (100 mL) was added 1-ethynyl-1-methyl-cyclopropane (11.0 g, 137 mmol), CuI (0.53 g, 2.8 mmol) and Pd(PPh3)2Cl2 (1.9 g, 2.8 mmol) under N2 atmosphere. The mixture was refluxed overnight and quenched with H2O (100 mL). The organic layer was separated and the aqueous layer was extracted with ethyl acetate (100 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and purified by chromatography on silica gel (3% EtOAc in Petroleum ether as eluant) to afford 6-chloro-4-((1-methylcyclopropyl)ethynyl)pyridin-3-amine (3.0 g, 53%). 1H-NMR (CDCl3, 300 MHz) δ 7.84 (s, 1H), 7.08 (s, 1H), 4.11 (br s, 2H), 1.37 (s, 3H), 1.03 (t, J=2.4, 2H) 0.76 (t, J=2.4, 2H).

後処理

  1. temperatureThe mixture was refluxed overnight
  2. customquenched with H2O (100 mL)
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted with ethyl acetate (100 mL×3)
  5. washThe combined organic layers were washed with brine
  6. dry with materialdried over anhydrous Na2SO4
  7. custompurified by chromatography on silica gel (3% EtOAc in Petroleum ether as eluant)

出典と根拠

ORDレコード
ord-f3f87881eed3484082014f791528b3ae
出典データセット
uspto-grants-2013_10
特許番号
US08563573B2

反応ノート

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