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A highly stereoselective synthesis of α,β-unsaturated oxazolines

✍ Scribed by Vito Capriati; Leonardo Degennaro; Saverio Florio; Renzo Luisi

Book ID
104232069
Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
83 KB
Volume
42
Category
Article
ISSN
0040-4039

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✦ Synopsis

Lithiated 2,4,4-trimethyl-2-oxazoline 2a and 2-chloromethyl-4,4-dimethyl-2-oxazoline 2b react smoothly with a number of nitrones 3 to produce a,b-unsaturated oxazolines 6 and 7 highly stereoselectively.

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Stereoselective synthesis of α-phenylcha
Stereoselective synthesis of α-phenylchalcogeno-α,β-unsaturated esters
✍ Claudio C. Silveira; Antonio L. Braga; Robson B. Guerra 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 123 KB

Ethyl a-phenylchalcogeno a,b-unsaturated esters were prepared in a stereoselective manner by the reaction of ethyl propiolates with organocuprates, followed by the reaction with the appropriate electrophilic organosulfur, organoselenium or organotellurium source.