4-Acetylmorpholine → trifluoro-methanesulfonic acid 2-morpholin-4-yl-4-oxo-4H-chromen-8-yl ester

Beteiligte Stoffe

Reaktionsschritte

Condensation of the lithium enolate of N-acetyl morpholine (2.2 ml) with methyl 2-hydroxy-3-trifluoromethanesulfonyloxy-benzoate (3.56 g, 11.9 mmol) yielded the salicylacatamide (3.6 g). Cyclodehydration of the product with trifluormethanesulfonic anhydride (5.5 ml) as described above yielded the product as a colourless solid (1.21 g).

Herkunft & Nachweise