methyl 2,6-dibromohexanoate

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

Procedure: In a manner similar to that of Reference Example 5, 5,6,7,8-tetrahydro-3-nitro-2-naphthol was allowed to react with methyl 2,6-dibromohexanoate to give methyl 6-bromo-2-(5,6,7,8-tetrahydro-3-nitro-2-naphthyloxy)hexanoate as an oily product, which was then allowed to react, in a manner similar to that of Reference Example 8, with 1-(4-fluorophenyl)piperadine to obtain methyl 6-[4-(4-fluorophenyl)-1-piperazinyl]-2-(5,6,7,8-tetrahydro-3-nitro-2-naphthyloxy) hexanoate as an oily product. The overall yield was 79.4%.

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

Procedure: Neat potassium ethanethioate (571 mg, 5 mmol) was added to a solution of methyl 2,6-dibromohexanoate (1440 mg, 5 mmol) in DMSO (5 mL) and the mixture was stirred at rt overnight. The reaction was quenched with water and extracted with ether, washed with water, brine and dried (MgSO4). The crude isolate was purified by silica gel FCC (DCM) to afford methyl 2-(acetylthio)-6-bromohexanoate as a clear oil. The reaction was quenched with water extracted with ether washed with water, brine dried (MgSO4) The crude isolate was purified by silica gel FCC (DCM)

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

Procedure: Neat potassium ethanethioate (571 mg, 5 mmol) was added to a solution of methyl 2,6-dibromohexanoate (1440 mg, 5 mmol) in DMSO (5 mL) and the mixture was stirred at rt overnight. The reaction was quenched with water and extracted with ether, washed with water, brine and dried (MgSO4). The crude isolate was purified by silica gel FCC (DCM) to afford methyl 2-(acetylthio)-6-bromohexanoate as a clear oil. The reaction was quenched with water extracted with ether washed with water, brine dried (MgSO4) The crude isolate was purified by silica gel FCC (DCM)

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

Procedure: In a manner similar to that of Reference Example 5, 5,6,7,8-tetrahydro-3-nitro-2-naphthol was allowed to react with methyl 2,6-dibromohexanoate to give methyl 6-bromo-2-(5,6,7,8-tetrahydro-3-nitro-2-naphthyloxy)hexanoate as an oily product, which was then allowed to react, in a manner similar to that of Reference Example 8, with 1-(4-fluorophenyl)piperadine to obtain methyl 6-[4-(4-fluorophenyl)-1-piperazinyl]-2-(5,6,7,8-tetrahydro-3-nitro-2-naphthyloxy) hexanoate as an oily product. The overall yield was 79.4%.

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

Procedure: In a manner similar to that of Reference Example 5, 5,6,7,8-tetrahydro-3-nitro-2-naphthol was allowed to react with methyl 2,6-dibromohexanoate to give methyl 6-bromo-2-(5,6,7,8-tetrahydro-3-nitro-2-naphthyloxy)hexanoate as an oily product, which was then allowed to react, in a manner similar to that of Reference Example 8, with 1-(4-fluorophenyl)piperadine to obtain methyl 6-[4-(4-fluorophenyl)-1-piperazinyl]-2-(5,6,7,8-tetrahydro-3-nitro-2-naphthyloxy) hexanoate as an oily product. The overall yield was 79.4%.

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

Procedure: Neat potassium ethanethioate (571 mg, 5 mmol) was added to a solution of methyl 2,6-dibromohexanoate (1440 mg, 5 mmol) in DMSO (5 mL) and the mixture was stirred at rt overnight. The reaction was quenched with water and extracted with ether, washed with water, brine and dried (MgSO4). The crude isolate was purified by silica gel FCC (DCM) to afford methyl 2-(acetylthio)-6-bromohexanoate as a clear oil. The reaction was quenched with water extracted with ether washed with water, brine dried (MgSO4) The crude isolate was purified by silica gel FCC (DCM)

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

Procedure: In a manner similar to that of Reference Example 5, 5,6,7,8-tetrahydro-3-nitro-2-naphthol was allowed to react with methyl 2,6-dibromohexanoate to give methyl 6-bromo-2-(5,6,7,8-tetrahydro-3-nitro-2-naphthyloxy)hexanoate as an oily product, which was then allowed to react, in a manner similar to that of Reference Example 8, with 1-(4-fluorophenyl)piperadine to obtain methyl 6-[4-(4-fluorophenyl)-1-piperazinyl]-2-(5,6,7,8-tetrahydro-3-nitro-2-naphthyloxy) hexanoate as an oily product. The overall yield was 79.4%.