Potassium Carbonate → HCID 68494469, compound

Participants

Reaction Conditions

Reaction Steps

11.1 g (1.5 eq.) tert-butyl-2-bromoethylcarbamate dissolved in 65 ml THF and 9.19 g (2 eq.) potassium carbonate were added to a solution of 7 g (1 eq.) N,N-dimethyl-4-(thiophen-2-yl)piperidin-4-amine in 40 ml THF. The reaction mixture was heated for 6 h at 70° C. The reaction course was monitored by thin-layer chromatography (20% MeOH/CHCl3). Once the conversion was complete, the solvent was distilled off completely, the residue mixed with 200 ml water and the aqueous phase extracted with 20% IPA/CHCl3. The combined organic phases were dried over Na2SO4. Following removal of the solvent under reduced pressure, the residue was purified by column chromatography (silica gel; 10% MeOH/CHCl3). 9 g (76%) of product were obtained in the form of an oil.

Provenance & Evidence