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A GaCl3-Catalyzed [4+1] Cycloaddition of α,β-Unsaturated Carbonyl Compounds and Isocyanides Leading to Unsaturated γ-Lactone Derivatives

✍ Scribed by Chatani, Naoto; Oshita, Masayuki; Tobisu, Mamoru; Ishii, Yutaka; Murai, Shinji


Book ID
111878182
Publisher
American Chemical Society
Year
2003
Tongue
English
Weight
53 KB
Volume
125
Category
Article
ISSN
0002-7863

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1,3-Dipolar cycloadditions of cyclic nit
✍ 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.