Dimethylformamide → 12-formyl-2-methyl-3,4-dioxo-1,3,4,14b-tetrahydro-10H-pyrazino[1,2-a]pyrrolo[2,1-c][1,4]benzodiazepine

HRID 1447415ノート

反応式

HRID 1447415 の反応式
P(Cl)(Cl)(Cl)=O.CN(C)[CH:8]=[O:9].[CH3:11][N:12]1[C:29](=[O:30])[C:28](=[O:31])[N:15]2[C:16]3[CH:27]=[CH:26][CH:25]=[CH:24][C:17]=3[CH2:18][N:19]3[CH:23]=[CH:22][CH:21]=[C:20]3[CH:14]2[CH2:13]1.C([O-])(=O)C.[Na+]>C(Cl)Cl.O>[CH:8]([C:23]1[N:19]2[C:20]([CH:14]3[CH2:13][N:12]([CH3:11])[C:29](=[O:30])[C:28](=[O:31])[N:15]3[C:16]3[CH:27]=[CH:26][CH:25]=[CH:24][C:17]=3[CH2:18]2)=[CH:21][CH:22]=1)=[O:9]

参加物

7

反応物 4

HCID 6228DimethylformamideHCID 24813Phosphorus oxychlorideHCID 517045Sodium AcetateHCID 128377152-methyl-3,4-dioxo-1,2,4,14b-tetrahydro-10H-pyrazino[1,2-a]pyrrolo[2,1-c][1,4]benzodiazepine

生成物 1

HCID 1283778412-formyl-2-methyl-3,4-dioxo-1,3,4,14b-tetrahydro-10H-pyrazino[1,2-a]pyrrolo[2,1-c][1,4]benzodiazepine

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6344Dichloromethane溶媒

実験手順

The starting material is prepared as follows: The mixture of 170 mg of phosphorus oxychloride and 100 ml of dimethylformamide is stirred at room temperature for 30 minutes, whereupon the solution of 281 mg of 2-methyl-3,4-dioxo-1,3,4,14b-tetrahydro-10H-pyrazino[1,2-a]pyrrolo[2,1-c][1,4]benzodiazepine in 5 ml of methylene chloride is added dropwise. After 30 minutes, the mixture is refluxed for another 30 minutes and cooled to room temperature. It is combined with 1.5 g of sodium acetate in 5 ml of water, stirred for 30 minutes and the organic layer separated. It is washed with water, 5% aqueous sodium bicarbonate, dried, evaporated and the residue triturated with diethyl ether, to yield the 12-formyl-2-methyl-3,4-dioxo-1,3,4,14b-tetrahydro-10H-pyrazino[1,2-a]pyrrolo[2,1-c][1,4]benzodiazepine melting at 300°-302°.

後処理

  1. customThe starting material is prepared
  2. additionis added dropwise
  3. temperaturethe mixture is refluxed for another 30 minutes
  4. customthe organic layer separated
  5. washIt is washed with water, 5% aqueous sodium bicarbonate
  6. customdried
  7. customevaporated
  8. customthe residue triturated with diethyl ether

出典と根拠

ORDレコード
ord-a21d58ea44764e3aab68eb028fcda31d
出典データセット
uspto-grants-1982_02
特許番号
US04316900

反応ノート

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