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ChemInform Abstract: Stereoselective Synthesis of 4,5-Diethylidene-oxazolidinones as New Dienes in Diels—Alder Reactions.

✍ Scribed by Rafael Martinez; Hugo A. Jimenez-Vazquez; Alicia Reyes; Joaquin Tamariz

Publisher
John Wiley and Sons
Year
2010
Weight
36 KB
Volume
33
Category
Article
ISSN
0931-7597

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Stereoselective Synthesis of 4,5-Diethyl
Stereoselective Synthesis of 4,5-Diethylidene-Oxazolidinones as New Dienes in Diels-Alder Reactions
✍ Rafael Martínez; Hugo A. Jiménez-Vázquez; Alicia Reyes; Joaquín Tamariz 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 German ⚖ 339 KB 👁 1 views

The N-substituted isomeric (4Z,5Z)-and (4E,5Z)-4,5-diethylideneoxazolidin-2-ones 5 and 6 were synthesized, the latter being favored during the one-step process from the a-diketone 1c and different isocyanates. The steric interaction between the N-substituent and the Me group attached to the exocycli

ChemInform Abstract: Application of the
ChemInform Abstract: Application of the Stereoselective Diels-Alder Reaction of Enantiopure 2-Sulfinyl Dienes: Synthesis of (-)-(1S,5R)-Karahana Ether.
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Application of the Stereoselective Diels-Alder Reaction of Enantiopure 2-Sulfinyl Dienes: Synthesis of (-)-(1S,5R)-Karahana Ether. -The natural karahana ether (VII) is synthesized for the first time by application of sulfinyl derivative (I) as chiral auxiliary in asymmetric Diels-Alder reaction and