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Diastereoselective 1,3-dipolar cycloaddition of nitrilimines to γ-oxygenated α,β-unsaturated enones and esters

✍ Scribed by Lutz Grubert; Guido Galley; Michael Pätzel

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
628 KB
Volume
7
Category
Article
ISSN
0957-4166

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1,3-Dipolar cycloadditions of cyclic nit
1,3-Dipolar cycloadditions of cyclic nitrones to γ-bromo α,β-unsaturated esters and lactones
✍ Pedro de March; Marta Figueredo; Josep Font; Antonio Salgado 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 630 KB

The 1,3-dipolar cycloaddition of cyclic nitrones to several "t-bromo ct,~unsaturated esters and lactones has been studied. All the reactions have shown high stereoselectivity, with a predominance of the endo or exo transition state for the trans or cis dipolarophiles, respectively.