Benzoyl chloride → 1-(benzoyloxymethyl)-9,10-dimethoxy-1,6,7,11b-tetrahydro-2H,4H-[1,3]oxazino-[4,3-a]isoquinoline
Reaction equation
[OH:1][CH2:2][CH:3]1[CH:8]2[C:9]3[C:14]([CH2:15][CH2:16][N:7]2[CH2:6][O:5][CH2:4]1)=[CH:13][C:12]([O:17][CH3:18])=[C:11]([O:19][CH3:20])[CH:10]=3.[C:21](Cl)(=[O:28])[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1>N1C=CC=CC=1>[C:21]([O:1][CH2:2][CH:3]1[CH:8]2[C:9]3[C:14]([CH2:15][CH2:16][N:7]2[CH2:6][O:5][CH2:4]1)=[CH:13][C:12]([O:17][CH3:18])=[C:11]([O:19][CH3:20])[CH:10]=3)(=[O:28])[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
0.01 mole (2.79 g) of 1-(hydroxymethyl)-9,10-dimethoxy-1,6,7,11b-tetrahydro-2H,4H-[1,3]oxazino[4,3-a]isoquinoline in 30 ml of absolute pyridine is boiled with 0.012 mole (1.69 g) of benzoyl chloride for 3 hours. The mixture is then poured onto 100 g of ice. The separated crystals are filtered off, washed with water and recrystallized from a mixture of diisopropyl ether and ethanol. Yield: 55%. The melting point and spectroscopical data of the compound are identical with those of the product obtained in Example 25.