Morpholine → HCID 71513088, compound

Participants

Reaction Steps

To 5-methoxy-2-methyl-4-nitrobenzoic acid (2.0 g, 9.47 mmol) in DCM (50 mL) was added DIPEA (8.3 mL, 47 mmol) and HATU (3.96 g, 10.4 mmol) followed by morpholine (0.83 mL, 9.47 mmol). The mixture was allowed to stir at RT for 5 h and then water (50 mL) and DCM (50 mL) were added. The aqueous phase was extracted with DCM (3×25 mL) and the combined organic phases were passed through a hydrophobic frit and the solvent was removed in vacuo. Purification of the residue via silica gel column chromatography (0-100% EtOAc in iso-hexane) gave (5-methoxy-2-methyl-4-nitrophenyl)(morpholino)methanone (2.5 g, 94%) as an off-white solid. LCMS (10 cm_ESCI_Formic_MeCN): [M+H]+=281 at 3.17 min. 1H NMR (400 MHz, CDCl3): δ 7.72 (s, 1H), 6.90 (s, 1H), 3.94 (s, 3H), 3.85-3.76 (m, 4H), 3.61 (dd, 2H), 3.23 (dd, 2H), 2.30 (s, 3H).

Provenance & Evidence