Asymmetric Hydrovinylation of Unactivated Linear 1,3-Dienes
β Scribed by Sharma, Rakesh K.; RajanBabu, T. V.
- Book ID
- 120309578
- Publisher
- American Chemical Society
- Year
- 2010
- Tongue
- English
- Weight
- 214 KB
- Volume
- 132
- Category
- Article
- ISSN
- 0002-7863
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π SIMILAR VOLUMES
Vinyl halides react with disubstituted acetylenes in the presence of the palladium-formate reducing system to give stereoselective formation of functionalized 1,2,4--trisubstituted-1,3-dienes in good to high yield. With arylethynyl,dialkylcarbinols this
Not a Diels-Alder reaction but a 1,4-hydrovinylation takes place on treatment of 1,3-dienes with functionalized alkenes in the presence of the catalyst system [CoBr (dppe)]/ZnI /Bu NBH (dppe = 1,2-bis(diphenylphosphanyl)ethane). With this reaction the 1,4-dienes with different substituents R -R can