Journal
CHEMICAL COMMUNICATIONS
Volume 52, Issue 36, Pages 6068-6071Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc00229c
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Funding
- JSPS KAKENHI [15H05755]
- Program for Leading Graduate Schools IGER program in Green Natural Sciences'', MEXT, Japan
- JSPS
- Grants-in-Aid for Scientific Research [15H05755, 15H05810, 26105739] Funding Source: KAKEN
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Chiral phosphite-urea bifunctional catalysts have been developed for the enantioselective bromocyclization of 2-geranylphenols with N-bromophthalimide (NBP) for the first time. The chiral triaryl phosphite moiety activates NBP to generate a bromophosphonium ion. On the other hand, the urea moiety interacts with a hydroxyl group of the substrate through hydrogen bonding interactions. Enantioselectivity is effectively induced through two-point attractive interactions between the catalyst and the substrate.
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