147235-64-1Relevant academic research and scientific papers
Heterocyclic β-enamino esters; 55. Imidazo[4,5-d]-, thiazolo[5,4-d]-, and thiazolo[4,5-d][1,3]oxazinones
Wamhoff,Berressem,Herrmann
, p. 107 - 111 (2007/10/02)
5-Aroylamine-, 3a,b, and 5-(3-arylureido)-1-benzyl-1H-imidazole-4-carboxylates 6a,b are converted with dichlorotriphenylphosphorane into 3-benzyl-3,7-dihydro-imidazo[4,5-d][1,3]oxazin-7-ones 4a,b and 7a,b, respectively. Similarly, 5-aroylamino-4-thiazolec
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.
