Journal
ORGANIC LETTERS
Volume 13, Issue 13, Pages 3522-3525Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol201333s
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Funding
- National Sciences and Engineering Research Council of Canada (NSERC)
- University of Alberta
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The intramolecular cycloisomerization of 1,6-enynes in 95-99% ee is reported using an immobilized Rh catalyst-organic framework synthesized from alternating ring-opening metathesis polymerization (altROMP) assembly. The framework was reused up to seven times, and it was used in high turnover number (TON) batch reactions. The catalyst provided the highest TONs to date (up to 890) for the cycloisomerizations, with catalyst loadings ranging from 0.2 to 0.06 mol %.
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