1-Bromo-3-chloropropane → 3-Chloropropyl 1-phenyl-1,2-dihydro[1,4]oxazino[2,3,4-jk]carbazol-7-yl Ether

Participants

Reaction Conditions

Reaction Steps

To a mixture of 1-phenyl-1,2-dihydro[1,4]oxazino[2,3,4-jk]carbazol-7-ol (0.82 g, 2.7 mmol) in dry DMF (12 mL) is added 1-bromo-3chloropropane (1.28 g, 8.1 mmol) and potassium carbonate (1.12 g, 8.1 mmol). The mixture is heated at 80° C. for 6 h. The mixture is then stirred at room temperature for 18 h followed by another 6 h at 80° C. The mixture is partitioned between water and CH2Cl2. The organic layer is washed 3 times with water (100 mL). The organic layer is then dried over anhydrous sodium sulfate and concentrated. Column chromatography (60 mL silica) using hexanes/CH2Cl2 (1:1) as eluent gave an oil which is rechromatographed (60 mL silica) using hexanes/CH2C]2 (60/40) as eluent gave 0.454 g (44%) of the title compound.

Provenance & Evidence