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Hetero Diels–Alder Cycloaddition of Indene for the Formal Synthesis of Onychnine

✍ Scribed by Hong, Bor‐Cherng; Hallur, Mahanandeesha Siddappa; Liao, Ju‐Hsiou

Book ID
120475470
Publisher
Taylor and Francis Group
Year
2006
Tongue
English
Weight
126 KB
Volume
36
Category
Article
ISSN
0039-7911

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The total synthesis of (±) kawain via a
The total synthesis of (±) kawain via a hetero-diels-alder cycloaddition
✍ Stephen Castellino; James J. Sims 📂 Article 📅 1984 🏛 Elsevier Science 🌐 French ⚖ 199 KB

The hetero-Diels-Alder reaction between 1,3-dimethoxy-1-trimethylsilyloxybutadlene 4, and cinnamaldehyde 5, produces (+) kawain in 75% and 84% yield respectively when catalyzed by Eu(fod)g or Yb(fod)g. When Ag(fod) is employed as the catalyst a unique condensation reaction occurs which produces two