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Author

Yongle Chen

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Sep 2026

Synthesis of CF3-Containing Bispirocyclic 2-Pyrrolidinones through Cycloaddition and Oxidative Dearomatization from Nitrones and 1-Alkynyl-2-naphthols.

Herein, a variety of trifluoromethyl-containing bispirocyclic 2-pyrrolidinones were prepared in good yields with high diastereoselectivity through a cinchonidine-catalyzed (4 + 3) cycloaddition and oxidative dearomatization strategy from N-trifluoromethyl aryl nitrones and 1-alkynyl-2-naphthols under mild reaction cond...

Shan Chen, Yong-Le Chen, Yan Li et al. · 0 citations
Open access Jul 2026

Feddsg: backdoor defense via semantic filter and geometric constraint in federated learning

FedDSG is proposed, a server-side defense that combines a semantic bias filter and a geometric direction constraint to counter backdoor manipulation, and consistently achieves the highest Overall Performance Score (OPS), reflecting a superior trade-off between robustness and accuracy.

Jiabao Zhang, Jianhua Wang, Yu-Hong Li et al. · 0 citations

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