A. Dannibale et al., REACTION OF 2,2,6-TRIMETHYL-4H-1,3-DIOXIN-4-ONE WITH IMINES - AN EASYROUTE TO ENAMIDES, Tetrahedron letters, 37(41), 1996, pp. 7429-7432
N-alkenyl acetoacetamides can be simply obtained in good yields by rea
ction of acetylketene, generated by thermolysis of 2,2,6-trimethyl-4H-
1,3-dioxin-4-one in refluxing toluene, with imines possessing an alpha
-hydrogen atom. Copyright (C) 1996 Elsevier Science Ltd