Acetic Acid → 2-methylsulfanyl-3H-thieno[2,3-d]pyrimidin-4-one

HRID 269856

反応式

HRID 269856 の反応式
[S:1]=[C:2]1[NH:7][C:6]2[S:8][CH:9]=[CH:10][C:5]=2[C:4](=[O:11])[NH:3]1.CI.[C:14](O)(=O)C>[OH-].[Na+]>[CH3:14][S:1][C:2]1[NH:3][C:4](=[O:11])[C:5]2[CH:10]=[CH:9][S:8][C:6]=2[N:7]=1

参加物

5

反応物 3

HCID 176Acetic AcidHCID 6328Methyl iodideHCID 36033932-sulfanyl-3H,4H-thieno(2,3-d)pyrimidin-4-one

生成物 1

HCID 38520912-methylsulfanyl-3H-thieno[2,3-d]pyrimidin-4-one

試薬・触媒・溶媒 1

HCID 14798Sodium Hydroxide溶媒

反応条件

温度
0 °C

実験手順

To a solution of 2-thioxo-2,3-dihydro-1H-thieno[2,3-d]pyrimidin-4-one (25.4 g, 0.138 mol) in 1N aqueous NaOH (600 mL) at room temperature was added methyl iodide (10.3 mL, 1.2 eq). The resulting mixture was stirred vigorously for about 2.5 hours. The reaction mixture was cooled to 0° C. and acetic acid was added (about 80 mL) until about pH=4.5 was reached. A fine precipitate was filtered and dried overnight to afford the title compound as a fine tan powder (24.8 g) (M+=198, M.P.=231.6-235.0° C.).

後処理

  1. filtrationA fine precipitate was filtered
  2. customdried overnight

出典と根拠

ORDレコード
ord-2b0484fd0ed1495ea3cc2857c7e24776
出典データセット
uspto-grants-2008_11
特許番号
US07449472B2

関連ノート

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