1,2-Dibromoethane → HCID 66604575, compound

Participants

Reaction Steps

A 100 ml round bottom flask was loaded with 3-(3-chloro-4-hydroxyphenyl)-7-(1,1-dioxo-thiomorpholino)-9H-carbazole-1-carboxamide (49.4 mg, 0.084 mmol, Example 408B), K2CO3 (150 mg, 1.085 mmol), DMF (6 ml) and 1,2-dibromoethane (0.09 ml, 1.044 mmol) and stirred at room temperature for 4.5 hours. The reaction mixture was poured into a separating funnel that was loaded with 100 ml water+citric acid (0.5 M solution in water) (10 ml, 5.00 mmol) and extracted with ethyl acetate. The organic layer was washed with dilute (1+5) aq. NaHCO3 solution, then brine, dried over MgSO4, filtered and evaporated to dryness to give 48.6 mg 3-(4-(2-bromoethoxy)-3-chlorophenyl)-7-(1,1-dioxo-thiomorpholino)-9H-carbazole-1-carboxamide, which was used without further purification. Estimated purity (from LCMS) ˜90%. MS (ESI) m/e+=576/578/580, m/e−=574/576/578 consistent with isotope pattern for 1 Br and 1 Cl.

Provenance & Evidence