نتایج جستجو برای: dihydrofurans
تعداد نتایج: 74 فیلتر نتایج به سال:
The synergy between metal catalysis and radical chemistry allows to surpass previous limitations of the reactions allenols sulfonylating reagents. Considering that studies reactivity allenol moiety with reagents have been limited addition rearrangement lacking cyclization, we decided modify protocol for achieving a catalytic cyclization/functionalization. In this way, accomplished copper-cataly...
α-Hydroxyalkylidene carbenes, generated from thermolysis of α,β-epoxy-N-aziridinylimines, undergo diastereotopic group selective 1,5 C–H insertion reactions on 2,4-dimethyl-8-oxabicyclo[3.2.1]oct-6-ene ring systems. Protection of a tertiary alcohol at C-3 of the bridged oxabicycle as a trimethylsilyl ether reverses the sense of diastereoselectivity. 1,5 C–H insertion into a methine adjacent to ...
Sulfinate Allenyl Carbenoids: Synthesis of 2,5‐Dihydrofurans by Domino Rearrangement and Cyclization
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