乙基 4-(3-羟丙基)哌啶-1-羧酸乙酯

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred mixture of 36 parts of ethyl 4-(3-hydroxypropyl)-1-piperidinecarboxylate and 261 parts of benzene were added dropwise 21.5 parts of thionyl chloride at 5°-10° C. Upon complete addition, stirring was continued overnight at this temperature. The reaction mixture was evaporated and the residue was taken up in methylbenzene. The solvent was evaporated (this was repeated twice), yielding 33 parts (83.8%) of ethyl 4-(3-chloropropyl)-1-piperidinecarboxylate as a residue (int. 58). Upon complete addition The reaction mixture was evaporated The solvent was evaporated (

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred mixture of 36 parts of ethyl 4-(3-hydroxypropyl)-1-piperidinecarboxylate and 261 parts of benzene were added dropwise 21.5 parts of thionyl chloride at 5°-10° C. Upon complete addition, stirring was continued overnight at this temperature. The reaction mixture was evaporated and the residue was taken up in methylbenzene. The solvent was evaporated (this was repeated twice), yielding 33 parts (83.8%) of ethyl 4-(3-chloropropyl)-1-piperidinecarboxylate as a residue (int. 58). Upon complete addition The reaction mixture was evaporated The solvent was evaporated (

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 36 parts of ethyl 4-(3-oxopropyl)-1-piperidinecarboxylate and 450 parts of tetrahydrofuran was hydrogenated at normal pressure and at 20° C. with 2 parts of Raney nickel catalyst. After the calculated amount of hydrogen was taken up, the catalyst was filtered off and the filtrate was evaporated. The residue was dissolved in 260 parts of dichloromethane. The organic layer was washed with 100 parts of a diluted hydrochloric acid solution, dried, filtered and evaporated, yielding 36 parts (98.3%) of ethyl 4-(3-hydroxypropyl)-1-piperidinecarboxylate as a residue (int. 47). the catalyst was filtered off the filtrate was evaporated The residue was dissolved in 260 parts of dichloromethane The organic layer was washed with 100 parts of a diluted hydrochloric acid solution dried filtered evaporated

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred mixture of 36 parts of ethyl 4-(3-hydroxypropyl)-1-piperidinecarboxylate and 261 parts of benzene were added dropwise 21.5 parts of thionyl chloride at 5°-10° C. Upon complete addition, stirring was continued overnight at this temperature. The reaction mixture was evaporated and the residue was taken up in methylbenzene. The solvent was evaporated (this was repeated twice), yielding 33 parts (83.8%) of ethyl 4-(3-chloropropyl)-1-piperidinecarboxylate as a residue (int. 58). Upon complete addition The reaction mixture was evaporated The solvent was evaporated (

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred mixture of 36 parts of ethyl 4-(3-hydroxypropyl)-1-piperidinecarboxylate and 261 parts of benzene were added dropwise 21.5 parts of thionyl chloride at 5°-10° C. Upon complete addition, stirring was continued overnight at this temperature. The reaction mixture was evaporated and the residue was taken up in methylbenzene. The solvent was evaporated (this was repeated twice), yielding 33 parts (83.8%) of ethyl 4-(3-chloropropyl)-1-piperidinecarboxylate as a residue (int. 58). Upon complete addition The reaction mixture was evaporated The solvent was evaporated (

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 36 parts of ethyl 4-(3-oxopropyl)-1-piperidinecarboxylate and 450 parts of tetrahydrofuran was hydrogenated at normal pressure and at 20° C. with 2 parts of Raney nickel catalyst. After the calculated amount of hydrogen was taken up, the catalyst was filtered off and the filtrate was evaporated. The residue was dissolved in 260 parts of dichloromethane. The organic layer was washed with 100 parts of a diluted hydrochloric acid solution, dried, filtered and evaporated, yielding 36 parts (98.3%) of ethyl 4-(3-hydroxypropyl)-1-piperidinecarboxylate as a residue (int. 47). the catalyst was filtered off the filtrate was evaporated The residue was dissolved in 260 parts of dichloromethane The organic layer was washed with 100 parts of a diluted hydrochloric acid solution dried filtered evaporated

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 36 parts of ethyl 4-(3-oxopropyl)-1-piperidinecarboxylate and 450 parts of tetrahydrofuran was hydrogenated at normal pressure and at 20° C. with 2 parts of Raney nickel catalyst. After the calculated amount of hydrogen was taken up, the catalyst was filtered off and the filtrate was evaporated. The residue was dissolved in 260 parts of dichloromethane. The organic layer was washed with 100 parts of a diluted hydrochloric acid solution, dried, filtered and evaporated, yielding 36 parts (98.3%) of ethyl 4-(3-hydroxypropyl) -1-piperidinecarboxylate as a residue (int. 47). the catalyst was filtered off the filtrate was evaporated The residue was dissolved in 260 parts of dichloromethane The organic layer was washed with 100 parts of a diluted hydrochloric acid solution dried filtered evaporated

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 36 parts of ethyl 4-(3-oxopropyl)-1-piperidinecarboxylate and 450 parts of tetrahydrofuran was hydrogenated at normal pressure and at 20° C. with 2 parts of Raney nickel catalyst. After the calculated amount of hydrogen was taken up, the catalyst was filtered off and the filtrate was evaporated. The residue was dissolved in 260 parts of dichloromethane. The organic layer was washed with 100 parts of a diluted hydrochloric acid solution, dried, filtered and evaporated, yielding 36 parts (98.3%) of ethyl 4-(3-hydroxypropyl) -1-piperidinecarboxylate as a residue (int. 47). the catalyst was filtered off the filtrate was evaporated The residue was dissolved in 260 parts of dichloromethane The organic layer was washed with 100 parts of a diluted hydrochloric acid solution dried filtered evaporated

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred mixture of 36 parts of ethyl 4-(3-hydroxypropyl)-1-piperidinecarboxylate and 261 parts of benzene were added dropwise 21.5 parts of thionyl chloride at 5°-10° C. Upon complete addition, stirring was continued overnight at this temperature. The reaction mixture was evaporated and the residue was taken up in methylbenzene. The solvent was evaporated (this was repeated twice), yielding 33 parts (83.8%) of ethyl 4-(3-chloropropyl)-1-piperidinecarboxylate as a residue (int. 58). Upon complete addition The reaction mixture was evaporated The solvent was evaporated (

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 36 parts of ethyl 4-(3-oxopropyl)-1-piperidinecarboxylate and 450 parts of tetrahydrofuran was hydrogenated at normal pressure and at 20° C. with 2 parts of Raney nickel catalyst. After the calculated amount of hydrogen was taken up, the catalyst was filtered off and the filtrate was evaporated. The residue was dissolved in 260 parts of dichloromethane. The organic layer was washed with 100 parts of a diluted hydrochloric acid solution, dried, filtered and evaporated, yielding 36 parts (98.3%) of ethyl 4-(3-hydroxypropyl)-1-piperidinecarboxylate as a residue (int. 47). the catalyst was filtered off the filtrate was evaporated The residue was dissolved in 260 parts of dichloromethane The organic layer was washed with 100 parts of a diluted hydrochloric acid solution dried filtered evaporated