Olefin synthesis by reductive elimination of β-heterosubstituted alkylhalides
✍ Scribed by K. Sevrin; J.N. Denis; A. Krief
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- French
- Weight
- 248 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
The reductive elimination reaction of p-hydroxy imidazolyl sulfones 1 to afford the corresponding olefins can be accomplished under mild conditions and in good yields using SmI2, offering a convenient modification of the Julia olefm synthesis.
The cyclization of δ-acetoxy-O-allyl-and ε-acetoxy-O-homoallyl-trichloroacetimidates to 4-vinyloxazolines and a 4-vinyldihydrooxazine has been efficiently achieved by olefin aminopalladation-β-heteroatom elimination. (Z)-Allylic imidates bearing a secondary δ-acetoxy group underwent Pd II -catalysed
Methoxyphenylthiomethyllithium 1 reacts with aldehydes to give adducts which are then transformed into xanthates. These compounds, by reaction with tri-n-butylstannane, afford vinyl ethers in good yields. Vinyl ethers, long time regarded simply as derivatives of aldehydes and ketones, are now consid