## Diels-Alder reactions of [(S)R]-(1E,3E )-l-p-tolylsulfinyl-l,3-pentadiene with 1-pyrrolidinyl-l-cyclohexene and methyl acrylate evidenced: i) low reactivity of the diene regardless of the electronic character of the dienophile (high pressures were always required); ii) a complete regio-and endo
Short enantioselective approach to substituted triazolopyridazines from [(S)R]-1-(1E, 3E)-1-p-tolylsulfinyl-1,3-pentadiene
✍ Scribed by M.Carmen Carreño; M.Belén Cid; JoséL. García Ruano; Mercedes Santos
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- French
- Weight
- 283 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0040-4039
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Chiral racemic vinylcyclohexenes 2, bearing oxygenated substituents and/or a methyl group at the C-5 position of the cyclohexene ring, were submitted to Diels-Alder reactions with enantiomerically pure (SS)-(2-p-tolylsulfinyl)-1,4-naphthoquinone [(+)-1]. The domino cycloaddition/pyrolytic sulfoxide
Enantioselective Diels-Alder Approach to Angucyclinones from (S)-2-(p-Tolylsulfinyl)-1,4-naphthoquinone and Substituted Racemic Vinylcyclohexenes. -The title reaction produces compounds such as (III) with the generation of three stereogenic centers in a one-pot domino reaction with kinetic resoluti