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Chloroform → 2-(4-Dimethylamino-butyl)-6,7-dimethoxy-1-methyl-1H-quinazoline-4-one

HRID 557146
Notes
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Reaction equation

HRID 557146 reaction equation
[CH3:1][N:2]([CH:4]([CH2:8][CH2:9][CH3:10])C(O)=O)[CH3:3].S(Cl)(Cl)=O.[CH3:15][O:16][C:17]1[C:25]([O:26][CH3:27])=[CH:24][C:20]([C:21]([NH2:23])=[O:22])=[C:19]([NH:28][CH3:29])[CH:18]=1.Cl[CH:31](Cl)Cl>>[CH3:1][N:2]([CH3:3])[CH2:4][CH2:8][CH2:9][CH2:10][C:29]1[N:28]([CH3:31])[C:19]2[C:20]([C:21](=[O:22])[N:23]=1)=[CH:24][C:25]([O:26][CH3:27])=[C:17]([O:16][CH3:15])[CH:18]=2
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 4

HCID 6212ChloroformHCID 24386Thionyl ChlorideHCID 178834622-(Dimethylamino)pentanoic acidHCID 669914734,5-Dimethoxy-2-(methylamino)benzamide

Product 1

HCID 669913912-(4-Dimethylamino-butyl)-6,7-dimethoxy-1-methyl-1H-quinazoline-4-one

Conditions

Temperature
57.5 °C

Procedure

3.80 g (20.9 mmol) dimethylamino-pentanoic acid were added to 25 ml thionyl chloride and stirred for 90 min. at 55-60° C. The remaining thionyl chloride was distilled in vacuum and the residue was added to a solution of 2.00 g (9.51 mmol) 4,5-Dimethoxy-2-methylamino-benzamide (see above) dissolved in 30 ml trichloromethane at 0° C. The mixture was boiled for 4 h. After filtration the residue was dissolved in trichloromethane and saturated sodium bicarbonate solution. The organic solution was dried over magnesium sulfate and evaporated under vacuum.

Workup

  1. distillationThe remaining thionyl chloride was distilled in vacuum
  2. waitThe mixture was boiled for 4 h
  3. filtrationAfter filtration the residue
  4. dissolutionwas dissolved in trichloromethane
  5. dry with materialThe organic solution was dried over magnesium sulfate
  6. customevaporated under vacuum

Sources & evidence

ORD record
ord-0ede7575ba9d4ff38b63af4f5474e58d
Source dataset
uspto-grants-2011_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08058431B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes