Morpholine → Morpholino(3-nitrophenyl)methanone

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To stirred solution of 3-nitrobenzoic acid (5 g, 29.9 mmol) in DCM: DMF (30 ml, 29:1) was added oxalyl chloride (3.14 ml, 35.9 mmol) dropwise at RT. Resulting reaction mixture was stirred for 1 h. The mixture was concentrated and the residue was dissolved in DCM (25 ml), the reaction mixture was cooled to 0° C. and triethylamine (6.26 ml, 44.9 mmol) and morpholine (3.13 ml, 35.9 mmol) were added and the reaction mixture was stirred for 1 h. The reaction mixture was concentrated under vacuum and the residue was diluted with cold water, the solid separated out was filtered and washed with n-hexanes and dried under vacuum to give the product (4.9 g).

Herkunft & Nachweise