Journal
ORGANIC LETTERS
Volume 19, Issue 10, Pages 2526-2529Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.7b00804
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Funding
- Natural Science Foundation of China
- fundamental subject construction funds [104.205.2.5]
- Shandong University
- Shandong province [21572118, JQ201505]
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An ultrafast synthesis of spiroketals by synergistic gold(I) and Sc(III) catalysis has been reported. Diverse 5,6-benzannulated spiroketals were rapidly constructed by the diastereoselective [4 + 2] cycloaddition between gold-generated enol ether and Sc(III)-catalyzed o-quinone methide intermediates. Ultrafast reaction rate, ambient reaction temperature, general scope, high yields, excellent diastereoselectivity, and good scalability are attractive features of this method.
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