S. Cacchi et al., A NOVEL ONE-POT PALLADIUM-CATALYZED SYNTHESIS OF 2-ARYL-4H-3,1-BENZOXAZIN-4-ONES AND 2-VINYL-4H-3,1-BENZOXAZIN-4-ONES, Synlett, (10), 1996, pp. 997
The palladium-catalysed reaction of o-iodoaniline with unsaturated hal
ides or triflates in the presence of K2CO3 and catalytic amounts of Pd
(PPh(3))(4) under an atmosphere of carbon monoxide affords 2-aryl- and
2-vinyl-4H-3,1-benzoxazin-4-ones in good to high yield.