Oxalic Acid → 3-{2-[4-(8-Chloro-10,11-dihydro-2-methyl-dibenzo[b,f]thiepin-10-yl)-1-piperazinyl]-ethyl}-2-oxazolidinone

HRID 1075880ノート

反応式

HRID 1075880 の反応式
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[S:11][C:10]3[CH:12]=[CH:13][C:14]([CH3:16])=[CH:15][C:9]=3[CH:8]=[C:7]([N:17]3[CH2:22][CH2:21][N:20]([CH2:23][CH2:24][N:25]4[CH2:29][CH2:28][O:27][C:26]4=[O:30])[CH2:19][CH2:18]3)[C:6]=2[CH:31]=1.[BH4-].[Na+].C(O)(=O)C(O)=O>COCCOCCOC>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[S:11][C:10]3[CH:12]=[CH:13][C:14]([CH3:16])=[CH:15][C:9]=3[CH2:8][CH:7]([N:17]3[CH2:18][CH2:19][N:20]([CH2:23][CH2:24][N:25]4[CH2:29][CH2:28][O:27][C:26]4=[O:30])[CH2:21][CH2:22]3)[C:6]=2[CH:31]=1

参加物

5

反応物 3

HCID 971Oxalic AcidHCID 4311764Sodium borohydrideHCID 214160983-[2-[4-(8-Chloro-2-methyl-dibenzo[b,f]thiepin-10-yl)-1-piperazinyl]-ethyl]-2-oxazolidinone

生成物 1

HCID 214161293-{2-[4-(8-Chloro-10,11-dihydro-2-methyl-dibenzo[b,f]thiepin-10-yl)-1-piperazinyl]-ethyl}-2-oxazolidinone

試薬・触媒・溶媒 1

HCID 8150Diglyme溶媒2 回

反応条件

温度
100 °C

実験手順

1.0 G. of 3-{2-[4-(8-chloro-2-methyl-dibenzo[b,f]thiepin10-yl)-1-piperazinyl]-ethyl}-2-oxazolidinone is stirred at room temperature with 50 ml. of diethyleneglycol dimethyl ether (diglyme) and 0.6 g. of sodium borohydride for 30 minutes under an atmosphere of argon. Thereafter, a solution of 2.8 g. of oxalic acid (C2H2O4 . 2H2O) in 15 ml. of diglyme is added dropwise at 20°-30°C. The mixture is stirred at 100°C. for 4 hours, and subsequently evaporated under reduced pressure. The residue is taken up in 2N sodium hydroxide and water, and extracted three times with 100 ml. of benzene each time. The combined benzene phases are washed with water, dried over magnesium sulfate, filtered and concentrated. The crystalline residue is recrystallized from ethyl acetate/petroleum ether (low boiling), whereby there is obtained 3-{2-[4-(8-chloro-10,11-dihydro-2-methyl-dibenzo[b,f]thiepin-10-yl)-1-piperazinyl]-ethyl}-2-oxazolidinone, having a melting point of 184°-186°C. The maleate crystallizes from methanol/ether and melts at 174°-175°C.

後処理

  1. customsubsequently evaporated under reduced pressure
  2. extractionwater, and extracted three times with 100 ml
  3. washThe combined benzene phases are washed with water
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crystalline residue is recrystallized from ethyl acetate/petroleum ether (low boiling)

出典と根拠

ORDレコード
ord-95844fd00ed24275b7b8d8fd16cc936c
出典データセット
uspto-grants-1976_05
特許番号
US03954764

反応ノート

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