Chloroacetyl chloride → 2-Carbobenzoxyaminomethyl-3-(2-chloroacetamido)-4-hydroxy-4-(2-chlorophenyl)-6-chloro-3,4-dihydroquinazoline

HRID 1391296Notes

Reaction equation

HRID 1391296 reaction equation
[C:1]([NH:11][CH2:12][C:13]1[N:22]([NH2:23])[C:21]([OH:31])([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=2[Cl:30])[C:20]2[C:15](=[CH:16][CH:17]=[C:18]([Cl:32])[CH:19]=2)[N:14]=1)([O:3][CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)=[O:2].[Cl:33][CH2:34][C:35](Cl)=[O:36].C(=O)(O)[O-].[Na+].C(OCC)(=O)C>CN(C)C=O>[C:1]([NH:11][CH2:12][C:13]1[N:22]([NH:23][C:35](=[O:36])[CH2:34][Cl:33])[C:21]([OH:31])([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=2[Cl:30])[C:20]2[C:15](=[CH:16][CH:17]=[C:18]([Cl:32])[CH:19]=2)[N:14]=1)([O:3][CH2:4][C:5]1[CH:6]=[CH:7][CH:8]=[CH:9][CH:10]=1)=[O:2]

Participants

6

Reactant 4

HCID 6577Chloroacetyl chlorideHCID 8857Ethyl AcetateHCID 516892Sodium BicarbonateHCID 155678462-Carbobenzoxyaminomethyl-3-amino-4-hydroxy-4-(2-chlorophenyl)-6-chloro-3,4-dihydroquinazoline

Product 1

HCID 213256772-Carbobenzoxyaminomethyl-3-(2-chloroacetamido)-4-hydroxy-4-(2-chlorophenyl)-6-chloro-3,4-dihydroquinazolineYield 86.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 2-carbobenzoxyaminomethyl-3-amino-4-hydroxy-4-(2-chlorophenyl)-6-chloro-3,4-dihydroquinazoline (18.84 g) in dimethylformamide (100 ml), chloroacetyl chloride (8.48 g) is added, and the resultant mixture is stirred at room temperature for 1 hour and allowed to stand overnight. The reaction mixture is neutralized with aqueous sodium bicarbonate and shaked with ethyl acetate. The ethyl acetate layer is evaporated under reduced pressure to remove the solvent, and the residue is washed with ether to give 2-carbobenzoxyaminomethyl-3-(2-chloroacetamido)-4-hydroxy-4-(2-chlorophenyl)-6-chloro-3,4-dihydroquinazoline (18.9 g). This product is recrystallized from ethyl acetate to give crystals melting at 130° to 134° C.

Workup

  1. customThe ethyl acetate layer is evaporated under reduced pressure
  2. customto remove the solvent
  3. washthe residue is washed with ether

Sources & evidence

ORD record
ord-e3427105fbe24c2fa2c5668c3572a04e
Source dataset
uspto-grants-1979_02
Patent number
US04141901

Reaction notes

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