On October 17, 2014, Hodgson, David M.; Man, Stanislav; Powell, Kimberley J.; Perko, Ziga; Zeng, Minxiang; Moreno-Clavijo, Elena; Thompson, Amber L.; Moore, Michael D. published an article.Recommanded Product: (Trimethoxymethyl)benzene The title of the article was Intramolecular Oxonium Ylide Formation-[2,3] Sigmatropic Rearrangement of Diazocarbonyl-Substituted Cyclic Unsaturated Acetals: A Formal Synthesis of Hyperolactone C. And the article contained the following:
Rh(II)-catalyzed oxonium ylide formation-[2,3] sigmatropic rearrangement of α-diazo-β-ketoesters possessing γ-cyclic unsaturated acetal substitution, followed by acid-catalyzed elimination-lactonization, provides a concise approach to 1,7-dioxaspiro[4.4]non-2-ene-4,6-diones (e.g., I → II → III). The process creates adjacent quaternary stereocenters with full control of the relative stereochem. An unsym. monomethylated cyclic unsaturated acetal leads to hyperolactone C (IV), where ylide formation-rearrangement proceeds with high selectivity between subtly nonequivalent acetal oxygen atoms. The experimental process involved the reaction of (Trimethoxymethyl)benzene(cas: 707-07-3).Recommanded Product: (Trimethoxymethyl)benzene
The Article related to hyperolactone c formal synthesis, diazo carbonyl cyclic unsaturated acetal intramol oxonium ylide formation, sigmatropic rearrangement oxonium ylide formation diazocarbonyl cyclic unsaturated acetal, oxaspirononenedione preparation and other aspects.Recommanded Product: (Trimethoxymethyl)benzene
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