7-(Benzyloxy)-4-chloro-6-methoxyquinazoline hydrochloride → 7-(Benzyloxy)-4-chloro-6-methoxyquinazoline
Reaction equation
Cl.[CH2:2]([O:9][C:10]1[CH:19]=[C:18]2[C:13]([C:14]([Cl:20])=[N:15][CH:16]=[N:17]2)=[CH:12][C:11]=1[O:21][CH3:22])[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1>C(Cl)Cl>[CH2:2]([O:9][C:10]1[CH:19]=[C:18]2[C:13]([C:14]([Cl:20])=[N:15][CH:16]=[N:17]2)=[CH:12][C:11]=1[O:21][CH3:22])[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
7-Benzyloxy-4-chloro-6-methoxyquinazoline hydrochloride (3.35 g) was dissolved in methylene chloride (250 ml) and washed with aqueous sodium hydrogen carbonate until the pH of the aqueous solution was adjusted to pH8. The organic layer was washed with brine, dried (MgSO4) and evaporated to give 7-benzyloxy-4-chloro-6-methoxyquinazoline free base (2.9 g, 96%).
Workup
- washwashed with aqueous sodium hydrogen carbonate until the pH of the aqueous solution
- washThe organic layer was washed with brine
- dry with materialdried (MgSO4)
- customevaporated
Sources & evidence
- ORD record
- ord-6165871680284d6d8b422fa2e6ea2b69
- Source dataset
- uspto-grants-2007_09
- Patent number
- US07268230B2
Reaction notes
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