Chloroform → (R)-1-(11H-dibenz[b,f][1,4]oxathiepin-11-ylmethyl)-3-piperidinecarboxylic acid ethyl ester

HRID 1107272ノート

反応式

HRID 1107272 の反応式
Br[CH2:2][CH:3]1[C:9]2[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=2[O:7][C:6]2[CH:14]=[CH:15][CH:16]=[CH:17][C:5]=2[S:4]1.C(C(C(C(O)=O)O)O)(O)=O.[CH2:28]([O:30][C:31]([C@@H:33]1[CH2:38][CH2:37][CH2:36][NH:35][CH2:34]1)=[O:32])[CH3:29].C(Cl)(Cl)Cl>C1C=CC=CC=1>[CH2:28]([O:30][C:31]([C@@H:33]1[CH2:38][CH2:37][CH2:36][N:35]([CH2:2][CH:3]2[C:9]3[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=3[O:7][C:6]3[CH:14]=[CH:15][CH:16]=[CH:17][C:5]=3[S:4]2)[CH2:34]1)=[O:32])[CH3:29]

参加物

5

反応物 3

HCID 6212ChloroformHCID 2733695(R)-(-)-Ethyl Nipecotate TartrateHCID 1352205711-bromomethyl-11H-dibenz[b,f][1,4]oxathiepine

生成物 1

HCID 70293235(R)-1-(11H-dibenz[b,f][1,4]oxathiepin-11-ylmethyl)-3-piperidinecarboxylic acid ethyl ester収率 53%

試薬・触媒・溶媒 1

HCID 241Benzene溶媒

実験手順

A mixture of 11-bromomethyl-11H-dibenz[b,f][1,4]oxathiepine (6.15 g, 20 mmol, prepared similarly as described in Coll. Czech. Chem. Commun. 50, 1484, 1985), (R)-3-piperidinecarboxylic acid ethyl ester tartrate (4.7 g, 30 mmol) and chloroform (10 ml) was warmed to achieve dissolution. The solution was then allowed to stand for 1 week at room temperature, and was subsequently heated at reflux temperature for 7 h. After cooling, the mixture was diluted with benzene and washed with 5% ammonia. The organic phase was dried (potassium carbonate) and evaporated. The residue was purified by column chromatography on silica gel (55 g) using first benzene and then diethyl ether as eluents to give 4.1 g (53%) of (R)-1-(11H-dibenz[b,f][1,4]oxathiepin-11-ylmethyl)-3-piperidinecarboxylic acid ethyl ester as an oil.

後処理

  1. customprepared similarly
  2. dissolutiondissolution
  3. waitto stand for 1 week at room temperature
  4. temperaturewas subsequently heated
  5. temperatureat reflux temperature for 7 h
  6. temperatureAfter cooling
  7. washwashed with 5% ammonia
  8. dry with materialThe organic phase was dried (potassium carbonate)
  9. customevaporated
  10. customThe residue was purified by column chromatography on silica gel (55 g)

出典と根拠

ORDレコード
ord-94fb46206e0d447d83b01833d2315c29
出典データセット
uspto-grants-2000_05
特許番号
US06060468

反応ノート

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