Ethanol → 9-chloro-7-(2-chlorophenyl)-2-(methylthio)-5H-pyrimido[5,4-d][2]benzazepine

HRID 1979569Notes

Reaction equation

HRID 1979569 reaction equation
[Cl:1][C:2]1[CH:24]=[CH:23][C:5]2[C:6]3[N:21]=[C:20]([SH:22])[N:19]=[CH:18][C:7]=3[CH2:8][N:9]=[C:10]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=3[Cl:17])[C:4]=2[CH:3]=1.S(OC)(O[CH3:29])(=O)=O.[OH-].[Na+].C(O)C>O>[Cl:1][C:2]1[CH:24]=[CH:23][C:5]2[C:6]3[N:21]=[C:20]([S:22][CH3:29])[N:19]=[CH:18][C:7]=3[CH2:8][N:9]=[C:10]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=3[Cl:17])[C:4]=2[CH:3]=1

Participants

6

Reactant 4

HCID 702EthanolHCID 6497Dimethyl SulfateHCID 14798Sodium HydroxideHCID 1785278489-chloro-7-(2-chlorophenyl)-5H-pyrimido[5,4-d][2]benzazepine-2-thiol

Product 1

HCID 132255139-chloro-7-(2-chlorophenyl)-2-(methylthio)-5H-pyrimido[5,4-d][2]benzazepine

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A mixture of 1.1 g (3.0 mmole) of 9-chloro-7-(2-chlorophenyl)-5H-pyrimido[5,4-d][2]benzazepin-2-thiol, 1.0 ml (10 mmole) of dimethyl sulfate, 20 ml of 1N sodium hydroxide and 10 ml of ethanol was stirred at room temperature for 15 min. The mixture was diluted with water and extracted with methylene chloride. The methylene chloride solution was dried over anhydrous sodium sulfate and concentrated at reduced pressure to give an oil. Crystallization from ether gave colorless prisms, mp 187°-188° C.

Workup

  1. extractionextracted with methylene chloride
  2. dry with materialThe methylene chloride solution was dried over anhydrous sodium sulfate
  3. concentrationconcentrated at reduced pressure
  4. customto give an oil
  5. customCrystallization from ether
  6. customgave colorless prisms, mp 187°-188° C.

Sources & evidence

ORD record
ord-50bcada5b8224672943864fa6c256eb3
Source dataset
uspto-grants-1984_11
Patent number
US04481142

Reaction notes

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