Synthesis and diels-alder reactions of (S)-3-chloro and (S)-3-ethyl-2-p-tolylsulfinyl-1,4-benzoquinones
✍ Scribed by M.Carmen Carreño; José L.García Ruano; Miguel A. Toledo; Antonio Urbano
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- French
- Weight
- 378 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
## 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
Enantiomerically pure (S)S-(p-tolylsulfinyl)-l,4-benzoquinones with alkyl and methoxy substituents at C-2 and/or C-3 are synthesized by CAN oxidation of adequately substituted (S)S-(p-tolylsulfinyl)-l,4-dimethoxyaromatic precursors 2 or 3. These compounds were obtained by ortho-directed metallation