Palladium-catalyzed allylic acetoxylation: an exploratory study of the influence of added acids
✍ Scribed by Björn Åkermark; Sverker Hansson; Tobias Rein; Jan V»gberg; Andreas Heumann; Jan-Erling Bäckvall
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 872 KB
- Volume
- 369
- Category
- Article
- ISSN
- 0022-328X
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📜 SIMILAR VOLUMES
The regioselectivity of the reaction of ethyl acetoacetate on allylic carbonate in the presence of a catalyst prepared from Pd(OAc), and P(C,H,-m-SO,Na), (or tppts) is not affected by the ratio Pd(OAc),/tppts, the nature of the nitrile, the relative amounts of water and nitrile or the temperature of
Palladium acetate immobilized on montmorillonite is an effective catalyst for the carbonylation of secondary allylic alcohols with carbon monoxide, in the presence of triphenylphosphine and an acid promoter, affording P,y-unsaturated acids in 39-56% isolated yields. The reaction is regio-and stereos