Triethylamine → HCID 57500352, compound

Participants

Reaction Steps

10 ml (71.8 mmol) of triethylamine and 15 g (52.7 mmol) of 4-oxo-2-phenyl-4H-3,1-benzoxazine-6-carbonyl chloride are added portionwise, at ambient temperature and under nitrogen, to the solution of 12.8 g (47.9 mmol) of 6-(benzyloxy)-1-methoxy-2-methylindolizine in 160 ml of dichloromethane. The reaction medium is stirred for 2 hours and is then filtered. The solid obtained is washed with dichloromethane and then with diisopropyl ether and dried. 17.8 g (83%) of an orange powder are obtained.

Provenance & Evidence