Syntheses of N-substituted 3,3,4-triphenyl-4-benzoylazetidin-2-ones and 3′,3′-diphenyl spiro(acenaphthen-1-one-2,4′-azetidin-2′-ones); novel examples exhibiting a high reactivity of imino group in ketoimines
Syntheses of N-substituted 3,3,4-triphenyl-4-benzoylazetidin-2-ones and 3′,3′-diphenyl spiro(acenaphthen-1-one-2,4′-azetidin-2′-ones); novel examples exhibiting a high reactivity of imino group in ketoimines