Potassium Carbonate → Methyl 5-(4-ethylphenyl)-1-(thiomorpholin-4-ylcarbonyl)piperidine-3-carboxylate

Participants

Reaction Conditions

Reaction Steps

5.00 g (12.1 mmol) of 3-methyl 1-(4-nitrophenyl) 5-(4-ethylphenyl)piperidine-1,3-dicarboxylate (Example 30A), 3.57 g (36.4 mmol) of thiomorpholine and 5.03 g (36.4 mmol) of potassium carbonate were added to 76 ml of DMF and heated in 5 portions at 150° C. for 1.5 h in a single-mode microwave (Emrys Optimizer). For workup, the reaction solutions were combined and filtered, and the residue was purified by means of preparative HPLC. Yield: 3.07 g (67% of theory)

Provenance & Evidence