Journal
ORGANIC LETTERS
Volume 21, Issue 10, Pages 3496-3500Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.9b00659
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Funding
- National Natural Science Foundation of China [21462034]
- Excellent Young Teachers Plan of Bingtuan [2017CB001, CZ027203]
- International Cooperation Project of Shihezi University
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Two tandem processes involving the cycloaddition of benzynes have been developed for the synthesis of polyaromatic hydrocarbons. Benzynes react with fluorene-derived alkenes through a tandem Diels-Alder reaction/dehydrogenation process to afford benzo[b]fluoranthenes in 35-87% yields. In addition, an unprecedented [2 + 2] cycloaddition/ring-opening sequence of benzynes and fluorene-derived N-arylimines provides facile access to spiroacridines in 38-79% yields.
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