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Enantioselective Nazarov Cyclizations Catalyzed by an Axial Chiral C6F5‐Substituted Boron Lewis Acid |
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| Authors: | Lars Süsse Maria Vogler Dr. Marius Mewald Dr. Benedict Kemper Dr. Elisabeth Irran Prof. Dr. Martin Oestreich |
| Affiliation: | 1. http://www.organometallics.tu‐berlin.de |
| Abstract: | A chiral variant of B(C6F5)3 with a 3,3′‐disubstituted binaphthyl backbone is shown to catalyze Nazarov cyclizations with high levels of enantio‐ and diastereocontrol. The parent B(C6F5)3 also promotes these ring closures efficiently. This electrocyclization is another example of the still small family of C?C bond formations mediated by B(C6F5)3 as the catalyst. |
| Keywords: | asymmetric catalysis boron C− C bond formation electrocyclic reactions Lewis acids |