147235-59-4Relevant articles and documents
A new, general approach for the synthesis of heteroannulated 3,1-oxazin-4-ones
Wamhoff,Herrmann,Stolben,Nieger
, p. 581 - 594 (2007/10/02)
β-(N-Triphenylphosphoranyliden)-enamino esters afford the synthetically useful heteroannulated 3,1-oxazin-4-ones with aroyl chlorides in different solvents. The reaction proceeds in one step and in high yields and appears to be independent of the reactivity of the heterocyclic substrate.