Browsing by Subject "1,2-prototropy"
Now showing items 1-2 of 2
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Nitrogen-containing heterocycles: 1,3-dipolar cycloaddition of stabilized nitrones with alkynes; primary cycloadducts, first and second generation rearrangement processes
(Royal Society of Chemistry (RSC), 2001-11-28)[4.3.0]- and [5.3.0]Bicyclic ring systems containing a nitrogen atom at the bridgehead position were prepared by a [3+2] addition of acetylenic dipolarophiles to the conformationally locked cyclic alpha -alkoxycarbonylnitrones ... -
Α-keto amides as precursors to heterocycles—generation and cycloaddition reactions of piperazin-5-one nitrones
(Royal Society of Chemistry (RSC), 2003-03-10)alpha-Keto amides 10a,b, formed from reaction of pyruvic or benzoylformic acid with allyl amine are found to present as single rotameric forms whilst their tertiary amido analogues 10c,d present as two rotamers in solution ...