the presence of nickel acetylacetonate afforded N,N"-substituted α,α-dioxoketene aminals. Adducts of acetylacetone with carbodiimides are readily deacetylated with MeONa in MeOH to form acetylketene aminals. Ketene aminals were used for the synthesis of functionalized 1,2,3-triazoles.
在
乙酰丙酮镍存在下,
乙酰丙酮和
乙酰乙酸乙酯与二苯基碳二
亚胺和二环己基碳二
亚胺的加成反应得到 N,N"-取代的 α,α-二氧烯酮
缩醛胺。
乙酰丙酮与碳二
亚胺的加合物很容易在 MeOH 中用 MeONa 脱乙酰形成
乙烯酮缩酮胺醛。胺被用于合成功能化的
1,2,3-三唑。