Phosphorus oxychloride → 3-Chloro-8-thia-4,6-diazatricyclo[7.4.0.0,2,7]trideca-1(9),2,4,6-tetraene

HRID 1891025

反応式

HRID 1891025 の反応式
[N:1]1[C:6]2[S:7][C:8]3[CH2:13][CH2:12][CH2:11][CH2:10][C:9]=3[C:5]=2[C:4](=O)[NH:3][CH:2]=1.O=P(Cl)(Cl)[Cl:17].C(=O)(O)[O-].[Na+]>O>[Cl:17][C:4]1[C:5]2[C:9]3[CH2:10][CH2:11][CH2:12][CH2:13][C:8]=3[S:7][C:6]=2[N:1]=[CH:2][N:3]=1

参加物

5

反応物 3

HCID 24813Phosphorus oxychlorideHCID 986145,6,7,8-Tetrahydro(1)benzothieno(2,3-D)pyrimidin-4(3H)-oneHCID 516892Sodium Bicarbonate

生成物 1

HCID 6995153-Chloro-8-thia-4,6-diazatricyclo[7.4.0.0,2,7]trideca-1(9),2,4,6-tetraene収率 60%

試薬・触媒・溶媒 1

HCID 962Water溶媒

反応条件

温度
60 °C

実験手順

A mixture of 3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4-one (0.8 g) and POCl3 (10 mL) was heated at 55-65° C. for 3 h. Water was then added followed by sodium bicarbonate. The resulting mixture was extracted with ethyl acetate. The organic layer was concentrated and the crude compound was purified by silica gel column chromatography using a mixture of hexanes:ethyl acetate (20:1), to give the title compound (0.52 g, 60%). 1H NMR (300 MHz, CDCl3): δ 8.69 (s, 1H), 3.10-3.07 (m, 2H), 2.88-2.86 (m, 2H), 1.89-1.92 (m, 4H). LC-MS (ESI) m/z 225.3 (M+H).

後処理

  1. extractionThe resulting mixture was extracted with ethyl acetate
  2. concentrationThe organic layer was concentrated
  3. customthe crude compound was purified by silica gel column chromatography
  4. additiona mixture of hexanes:ethyl acetate (20:1)

出典と根拠

ORDレコード
ord-9787b7ab0295430cbdbb8cfbeb2a57b7
出典データセット
uspto-grants-2013_08
特許番号
US08507502B2

関連ノート

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