80761-37-1Relevant articles and documents
THE CHEMISTRY OF 2H-3,1-BENZOXAZINE-2,4(1H)-DIONE: REACTIONS WITH 4H-FURO/3,4-d//1,3/OXAZINE-2(1H),4-DIONE
Olagbemiro, Timothy Oyebode
, p. 1067 - 1072 (2007/10/02)
The novel tetracyclic ring system represented by 4 and 5 has been developed by the reactions of isatoic anhydride 1a with 3-isocyanato-4-furoyl chloride 3b and by the reaction of 4H-furo/3,4-d//1,3/oxazine-2(1H),4-dione 3a with 2-isocyanatobenzoyl chloride 1b, respectively.The synthesis as well as the mechanism of the reaction are briefly discussed.