Journal
ADVANCED SYNTHESIS & CATALYSIS
Volume 356, Issue 6, Pages 1243-1254Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201400087
Keywords
asymmetric catalysis; heterobimetallic complexes; Michael addition; rare earths; supported catalysts
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Funding
- University of Pennsylvania
- CSC (Chinese scholarship committee)
- ICIQ Foundation
- NSF [NSF-ICC: CHE-1026553]
- MINECO [PIB2010US-00616, CTQ2012-38594-C02-01]
- AGAUR [2009SGR623]
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Heterobimetallic Lewis acid catalysts are broadly useful and methods to recycle them have immediate applications. However, their immobilization through covalent binding can be challenging. Non-covalent immobilization of supported asymmetric catalysts is attractive due to ease of preparation and potential for reversible binding. We report a novel non-covalent binding strategy for Shibasaki's REMB framework {RE=rare earth metal; M=Li, Na, K; B=BINOL; RE:M:B=1:3:3, [M-3(sol)(n)][(BINOLate)(3)RE]} and explore the reactivity of the supported catalyst.
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