(N-Tosyl)amino substituted β-keto diazo carbonyl compounds have been prepared by reaction of titanium enolate of β-ketodiazoester or -ketone with an activated N-tosylimine. Rh2(OAc)4-catalyzed reaction of the (N-tosyl)amino substituted α-diazocarbonyl compounds leads to the efficient formation of pyrrole derivatives.
(N-托烯基)
氨基取代的β-酮双氮碳酰化合物是通过β-酮双氮酯或-酮的
钛烯醇盐与活化的N-托烯
亚胺反应制备的。Rh2(OAc)4催化的(N-托烯基)
氨基取代的α-双氮碳酰化合物的反应有效地形成了
吡咯衍
生物。