Chemically Modified β-Cyclodextrins as Supramolecular Carriers in the Biphasic Palladium-Catalyzed Cleavage of Allylic Carbonates: Activity Enhancement and Substrate-Selective Catalysis
✍ Scribed by Thibaut Lacroix; Hervé Bricout; Sébastien Tilloy; Eric Monflier
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 349 KB
- Volume
- 1999
- Category
- Article
- ISSN
- 1434-193X
No coin nor oath required. For personal study only.
✦ Synopsis
Catalytic amounts of chemically modified β-cyclodextrins modified cyclodextrins. The process of molecular recognition between the cyclodextrin and the substrate allowed us to allowed us to achieve, in high yields, the deprotection of various water-insoluble allylic carbonates in a genuine two-perform substrate-selective catalytic reactions which cannot be achieved in homogeneous or biphasic media with phase system without co-solvent. The catalytic activities were up to 300 times higher than those observed without conventional transition metal catalysts.
usually prevents the quantitative recovery of the catalytic