7-bromo-1,1a,3,7b-tetrahydrocyclopropa[c]quinolin-2-one

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The title compound was prepared using a procedure analogous to bromo-1a,2,3,7b-tetrahydro-1H-cyclopropa[c]quinoline except that 7-bromo-3,7b-dihydro-1H-cyclopropa[c]quinolin-2(1aH)-one was replaced with 8-bromo-2H-benzo[b][1,4]thiazin-3(4H)-one. LCMS, [M+H]+=231.9. 1H NMR (400 MHz, MeOD) δ 6.86-6.80 (m, 1H), 6.73 (t, J=7.9 Hz, 1H), 6.52 (dd, J=8.1, 1.3 Hz, 1H), 3.56-3.49 (m, 2H), 3.09-3.01 (m, 2H).

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The title compound was prepared using a procedure analogous to bromo-1a,2,3,7b-tetrahydro-1H-cyclopropa[c]quinoline except that 7-bromo-3,7b-dihydro-1H-cyclopropa[c]quinolin-2(1aH)-one was replaced with 3-((4-bromo-1H-pyrazol-1-yl)methyl)benzamide. LCMS, [M+H]+=266.1. 1H NMR (500 MHz, CDCl3) δ 7.47 (s, 1H), 7.36 (s, 1H), 7.33-7.25 (m, 2H), 7.18 (s, 1H), 7.09 (d, J=7.4 Hz, 1H), 5.24 (s, 2H), 3.85 (s, 2H), 1.78 (s, 2H).

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The title compound was prepared using a procedure analogous to bromo-1a,2,3,7b-tetrahydro-1H-cyclopropa[c]quinoline except that 7-bromo-3,7b-dihydro-1H-cyclopropa[c]quinolin-2(1aH)-one was replaced with 8-bromo-2H-benzo[b][1,4]oxazin-3(4H)-one. LCMS, [M+H]+=214.0. 1H NMR (400 MHz, CDCl3) δ 6.90 (dd, J=7.9, 1.5 Hz, 1H), 6.63 (t, J=7.9 Hz, 1H), 6.53 (dd, J=7.9, 1.5 Hz, 1H), 4.33-4.39 (m, 2H), 3.42-3.48 (m, 2H).

Conditions: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The mixture of 7-bromo-3,7b-dihydro-1H-cyclopropa[c]quinolin-2(1aH)-one (100 mg, 0.420 mmol) and borane tetrahydrofuran complex (5 mL, 5.00 mmol) was heated at 80° C. for 4 h. After this time, MeOH (5 mL) was added slowly to the reaction mixture, followed by 3 mL of conc. HCl. The resulting mixture was heated at 100° C. for 1 h, and then cooled to room temperature. After removing most of the solvent, the mixture was adjusted to a pH of 8-9 by using saturated Na2CO3. The aqueous solution was extracted with EtOAc (2×10 mL). The combined organic layers were concentrated and purified by flash chromatography (0 to 30% ethyl acetate:hexanes) to afford the title compound (78 mg, 83% yield) as an oil. LCMS, [M+H]+=223.9. 1H NMR (400 MHz, CDCl3) δ 8.15 (s, 1H), 7.24 (d, J=7.7 Hz, 1H), 7.00 (t, J=7.7 Hz, 1H), 6.69 (d, J=7.7 Hz, 1H), 2.84 (td, J=8.1, 5.2 Hz, 1H), 2.22-2.13 (m, 1H), 1.76 (td, J=9.2, 4.7 Hz, 1H), 0.75 (dd, J=10.0, 5.0 Hz, 1H). The resulting mixture was heated at 100° C. for 1 h cooled to room temperature After removing most of the solvent The aqueous solution was extracted with EtOAc (2×10 mL) The combined organic layers were concentrated purified by flash chromatography (0 to 30% ethyl acetate:hexanes)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a suspension of 7-bromo-3-(4-methoxybenzyl)-3,7b-dihydro-1H-cyclopropa[c]quinolin-2(1aH)-one (0.300 g, 0.837 mmol) in 9:1 acetonitrile/water (5.5 mL) was added CAN (0.459 g, 0.837 mmol) at room temperature. After stirring at room temperature overnight, the reaction mixture was quenched with water (10 mL) and adjusted pH to 7-9 by using saturated Na2CO3. The resulting mixture was extracted with EtOAc. The combined organic layer was concentrated and purified by flash chromatography (0 to 50% ethyl acetate:hexanes) to afford the title compound (0.18 g, 95% yield) as a pale yellow solid. LCMS, [M+H]+=237.9. 1H NMR (400 MHz, CDCl3) δ 8.15 (s, 1H), 7.24 (d, J=7.7 Hz, 1H), 7.00 (t, J=7.7 Hz, 1H), 6.69 (d, J=7.7 Hz, 1H), 2.84 (td, J=8.1, 5.2 Hz, 1H), 2.22-2.13 (m, 1H), 1.76 (td, J=9.2, 4.7 Hz, 1H), 0.75 (dd, J=10.0, 5.0 Hz, 1H). the reaction mixture was quenched with water (10 mL) The resulting mixture was extracted with EtOAc The combined organic layer was concentrated purified by flash chromatography (0 to 50% ethyl acetate:hexanes)