By Formation of Two Bonds from Atom Fragments

The palladium-catalyzed arylation of cyclic enamide 160 with 2-iodophenol furnished a ca. 2 1 mixture of 161 and pyrido[l,2-c][l,3] benzoxazin-6-one (162) (90JOC2464). 

7-Substituted 6,7-dihydro-l//,3//,5//-pyrido[3,2,l-j,y][3,l]benzoxazines (157-159) were prepared from l-(l-benzotriazolyl)-l,2-dihydro-3//- 

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