Dimethylacetamide → 5-(1-Benzyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine

HRID 1971588

反応式

HRID 1971588 の反応式
Br[C:2]1[N:7]2[N:8]=[C:9]([NH2:11])[N:10]=[C:6]2[CH:5]=[CH:4][CH:3]=1.[CH2:12]([N:19]1[CH:23]=[C:22](B(O)O)[CH:21]=[N:20]1)[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].CC(N(C)C)=O>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.O>[CH2:12]([N:19]1[CH:23]=[C:22]([C:2]2[N:7]3[N:8]=[C:9]([NH2:11])[N:10]=[C:6]3[CH:5]=[CH:4][CH:3]=2)[CH:21]=[N:20]1)[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1

参加物

7

反応物 4

HCID 31374DimethylacetamideHCID 62657Potassium Phosphate, TribasicHCID 33528811-Benzyl-1H-pyrazole-4-boronic acidHCID 252159395-Bromo-[1,2,4]triazolo[1,5-a]pyridin-2-amine

生成物 1

HCID 445556945-(1-Benzyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒

反応条件

温度
150 °C

実験手順

A vial was charged with 5-bromo-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine (2.00 g, 9.39 mmol), 1-benzylpyrazole-4-boronic acid, pinacol ester (3.20 g, 11.3 mmol), potassium phosphate (4.00 g, 18.8 mmol) and tetrakis(triphenylphosphine)palladium (1.10 g, 0.94 mmol). Dimethylacetamide (24 ml) and water (8 ml) were added and the reaction mixture was heated under microwave irradiation to 150° C. for 10 min. The mixture was partitioned between ethyl acetate and water, and the aqueous phase extracted with ethyl acetate. The combined organic phases were washed several times with water, once with brine, dried over magnesium sulfate and concentrated in vacuo. Trituration in the minimum amount of dichloromethane and diethyl ether afforded an orange solid which required no further purification. Yield: 1.82 g, 67%; LCMS method: 2, RT: 2.37 min, MI: 291 [M+1].

後処理

  1. customThe mixture was partitioned between ethyl acetate and water
  2. extractionthe aqueous phase extracted with ethyl acetate
  3. washThe combined organic phases were washed several times with water
  4. dry with materialonce with brine, dried over magnesium sulfate
  5. concentrationconcentrated in vacuo
  6. customTrituration in the minimum amount of dichloromethane and diethyl ether afforded an orange solid which
  7. customno further purification

出典と根拠

ORDレコード
ord-e7ee3b298ed1408e95010760f9d9f4f4
出典データセット
uspto-grants-2013_04
特許番号
US08431596B2

関連ノート

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