ethyl (E)-4-piperidin-1-ylbut-2-enoate

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

Procedure: A mixture of ethyl bromocrotonate (193 mg), piperidine (94 mg) and potassium carbonate (276 mg) in acetonitrile (10 ml) was stirred and heated at reflux for 3 hours. The reaction mixture was cooled and the solvent was removed in vacuo. The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml). The organic extracts were dried (Na2SO4), filtered and concentrated in vacuo to give the title compound as an orange oil (157 mg). Tlc Silica. (100:8:1)Mixture of dichloromethane, ethanol and ammonia (S.G=0.88) Rf=0.55 Mass spec MH+ (found)=198 MH+ (calculated)=198. heated at reflux for 3 hours The reaction mixture was cooled the solvent was removed in vacuo The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml) The organic extracts were dried (Na2SO4) filtered concentrated in vacuo

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

Procedure: A mixture of ethyl-4-bromocrotonate (193 mg), piperidine (94 mg) and potassium carbonate (276 mg) in acetonitrile (10 ml) was stirred and heated at reflux for 3 hours. The reaction mixture was cooled and the solvent was removed in vacuo. The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml). The organic extracts were dried (Na2SO4), filtered and concentrated in vacuo to give the title compound as an orange oil (157 mg). heated at reflux for 3 hours The reaction mixture was cooled the solvent was removed in vacuo The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml) The organic extracts were dried (Na2SO4) filtered concentrated in vacuo

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

Procedure: A mixture of ethyl bromocrotonate (193 mg), piperidine (94 mg) and potassium carbonate (276 mg) in acetonitrile (10 ml) was stirred and heated at reflux for 3 hours. The reaction mixture was cooled and the solvent was removed in vacuo. The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml). The organic extracts were dried (Na2SO4), filtered and concentrated in vacuo to give the title compound as an orange oil (157 mg). Tlc Silica. (100:8:1)Mixture of dichloromethane, ethanol and ammonia (S.G=0.88) Rf=0.55 Mass spec MH+ (found)=198 MH+ (calculated)=198. heated at reflux for 3 hours The reaction mixture was cooled the solvent was removed in vacuo The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml) The organic extracts were dried (Na2SO4) filtered concentrated in vacuo

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

Procedure: A mixture of ethyl bromocrotonate (193 mg), piperidine (94 mg) and potassium carbonate (276 mg) in acetonitrile (10 ml) was stirred and heated at reflux for 3 hours. The reaction mixture was cooled and the solvent was removed in vacuo. The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml). The organic extracts were dried (Na2SO4), filtered and concentrated in vacuo to give the title compound as an orange oil (157 mg). Tlc Silica. (100:8:1)Mixture of dichloromethane, ethanol and ammonia (S.G=0.88) Rf=0.55 Mass spec MH+ (found)=198 MH+ (calculated)=198. heated at reflux for 3 hours The reaction mixture was cooled the solvent was removed in vacuo The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml) The organic extracts were dried (Na2SO4) filtered concentrated in vacuo

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

Procedure: A mixture of ethyl-4-bromocrotonate (193 mg), piperidine (94 mg) and potassium carbonate (276 mg) in acetonitrile (10 ml) was stirred and heated at reflux for 3 hours. The reaction mixture was cooled and the solvent was removed in vacuo. The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml). The organic extracts were dried (Na2SO4), filtered and concentrated in vacuo to give the title compound as an orange oil (157 mg). heated at reflux for 3 hours The reaction mixture was cooled the solvent was removed in vacuo The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml) The organic extracts were dried (Na2SO4) filtered concentrated in vacuo

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

Procedure: A mixture of ethyl-4-bromocrotonate (193 mg), piperidine (94 mg) and potassium carbonate (276 mg) in acetonitrile (10 ml) was stirred and heated at reflux for 3 hours. The reaction mixture was cooled and the solvent was removed in vacuo. The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml). The organic extracts were dried (Na2SO4), filtered and concentrated in vacuo to give the title compound as an orange oil (157 mg). heated at reflux for 3 hours The reaction mixture was cooled the solvent was removed in vacuo The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml) The organic extracts were dried (Na2SO4) filtered concentrated in vacuo

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

Procedure: A mixture of ethyl bromocrotonate (193 mg), piperidine (94 mg) and potassium carbonate (276 mg) in acetonitrile (10 ml) was stirred and heated at reflux for 3 hours. The reaction mixture was cooled and the solvent was removed in vacuo. The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml). The organic extracts were dried (Na2SO4), filtered and concentrated in vacuo to give the title compound as an orange oil (157 mg). Tlc Silica. (100:8:1)Mixture of dichloromethane, ethanol and ammonia (S.G=0.88) Rf=0.55 Mass spec MH+ (found)=198 MH+ (calculated)=198. heated at reflux for 3 hours The reaction mixture was cooled the solvent was removed in vacuo The residue was partitioned between water (2×15 ml) and ethyl acetate (20 ml) The organic extracts were dried (Na2SO4) filtered concentrated in vacuo