Preparation and Diels-Alder reactivity of ethyl-β-phenylsulfonylpropiolate
✍ Scribed by Ming Shen; Arthur G. Schultz
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- French
- Weight
- 192 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0040-4039
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## Abstract Treatment of [2.2.2]hericene **10** with Fe~2~(CO)~9~ in hexane gave a mixture of monometallic complex **14**, two isomeric dimetallic complexes **15** and **16**, and a trimetallic complex **19** in which all the three diene moieties of **10**, are coordinated. The rate constants of th
Pd-catalyzed double carbomethoxylation of the Diels-A lder adduct of cyclopentadiene and maleic anhydride yielded the methyl norbornane-2,3-endo-5,6-exotetracarboxylate (4) which was transformed in three steps into 2,3,5,6-tetramethyIidenenorbornane (1). The cycloaddition of tetracyanoethylene (TCNE