Pyridine → 2-methyl-10-oxo-10H-pyrido[1,2-a]thieno[3,2-d]pyrimidine-7-carbonitrile

HRID 1155897ノート

反応式

HRID 1155897 の反応式
[CH3:1][C:2]1[S:10][C:9]2[C:8](=[O:11])[N:7]3[CH:12]=[C:13]([C:16]([NH2:18])=O)[CH:14]=[CH:15][C:6]3=[N:5][C:4]=2[CH:3]=1.N1C=CC=CC=1.P(Cl)(Cl)(Cl)=O>C(Cl)(Cl)Cl>[CH3:1][C:2]1[S:10][C:9]2[C:8](=[O:11])[N:7]3[CH:12]=[C:13]([C:16]#[N:18])[CH:14]=[CH:15][C:6]3=[N:5][C:4]=2[CH:3]=1

参加物

5

反応物 3

HCID 1049PyridineHCID 24813Phosphorus oxychlorideHCID 129530542-methyl-10-oxo-10H-pyrido[1,2-a]thieno[3,2-d]pyrimidine-7-carboxamide

生成物 1

HCID 129530552-methyl-10-oxo-10H-pyrido[1,2-a]thieno[3,2-d]pyrimidine-7-carbonitrile

試薬・触媒・溶媒 1

HCID 6212Chloroform溶媒

実験手順

2-Methyl-10-oxo-10H-pyrido[1,2-a]thieno[3,2-d]pyrimidine-7-carboxamide (Example 44), 0.6 g (0.0023 mol), in 10 of pyridine, 25 ml of phosphorous oxychloride and 25 ml of chloroform is refluxed on a steam bath for three hours. The solvents are evaporated in vacuo and the residue is treated with 100 ml of ice water. The resulting precipitate is filtered to give 0.5 g of 2-methyl-10-oxo-10H-pyrido[1,2-a]thieno[3,2-d]pyrimidine-7-carbonitrile; mp 258°-259° C. after recrystallization from methanol.

後処理

  1. customThe solvents are evaporated in vacuo
  2. additionthe residue is treated with 100 ml of ice water
  3. filtrationThe resulting precipitate is filtered

出典と根拠

ORDレコード
ord-9d869a94cbc04e69993ce8a74ac79d11
出典データセット
uspto-grants-1982_06
特許番号
US04332947

反応ノート

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