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Transition metal-catalysed (4 + 3) cycloaddition reactions involving allyl cations

✍ Scribed by Fernández, Israel ;Mascareñas, José Luis

Book ID
118141726
Publisher
Royal Society of Chemistry
Year
2012
Tongue
English
Weight
799 KB
Volume
10
Category
Article
ISSN
1477-0520

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Heteroatom-stabilized allylic cations in
Heteroatom-stabilized allylic cations in 4+3 cycloadditions. A tandem Peterson olefination/4+3 cycloaddition reaction
✍ Michael Harmata; Darin E. Jones 📂 Article 📅 1997 🏛 Elsevier Science 🌐 French ⚖ 110 KB

The readily available tertiary alcohols 4a-c react with selected dienes in the presence of titanium tetrachloride to give 4+3 cycloaddition products. The process is best rationalized as a Peterson olefination followed by allylic cation formation and 4+3 cycloaddition.