Pyridine → 5-Methyl-4-(dimethylaminomethyl)-2-thiophenemethanol N,N,3-trimethyl-3-thiophene carboxamide

HRID 851108

反応式

HRID 851108 の反応式
[CH3:1][C:2]1[S:3][CH:4]=[CH:5][C:6]=1[C:7]([OH:9])=O.[C:10](Cl)(=O)[C:11](Cl)=[O:12].[N:16]1[CH:21]=CC=C[CH:17]=1>C1(C)C=CC=CC=1>[CH3:17][N:16]([CH3:21])[C:7]([C:6]1([CH3:10])[CH:5]=[CH:4][S:3][CH2:2]1)=[O:9].[CH3:1][C:2]1[S:3][C:4]([CH2:11][OH:12])=[CH:5][C:6]=1[CH2:7][N:16]([CH3:21])[CH3:17]

参加物

5

反応物 3

HCID 1049PyridineHCID 65578Oxalyl chlorideHCID 46254092-Methylthiophene-3-carboxylic acid

生成物 1

HCID 704178535-Methyl-4-(dimethylaminomethyl)-2-thiophenemethanol N,N,3-trimethyl-3-thiophene carboxamide

試薬・触媒・溶媒 1

HCID 1140Toluene溶媒

実験手順

A mixture of 2-methyl-3-thiophene carboxylic acid (2 g) and oxalyl chloride (2 ml) in dry toluene (20 ml) was heated under reflux and was treated with pyridine (0.05 ml). The reaction mixture was heated at reflux for 1 h, cooled and partially evaporated. The residue was added to a solution of dimethylamine in toluene at 0° to 5° C. After 2 hours water and diethyl ether were added. The organic phase was washed with dilute hydrochloric acid, sodium hydroxide and water, dried and evaporated to an oil which was distilled to give the title compound (1.4 g) as a colourless oil b.p. 100°/0.1 mm.

後処理

  1. temperaturewas heated
  2. temperatureunder reflux
  3. temperatureThe reaction mixture was heated
  4. temperatureat reflux for 1 h
  5. temperaturecooled
  6. custompartially evaporated
  7. additionThe residue was added to a solution of dimethylamine in toluene at 0° to 5° C
  8. additionAfter 2 hours water and diethyl ether were added
  9. washThe organic phase was washed with dilute hydrochloric acid, sodium hydroxide and water
  10. customdried
  11. customevaporated to an oil which
  12. distillationwas distilled

出典と根拠

ORDレコード
ord-a162273636ee41ea9571ac318e531ee8
出典データセット
uspto-grants-1983_05
特許番号
US04382929

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