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封面介绍Photocatalytic heterogeneous chlorotrifluoromethylation and iodoperfluoroalkylation of unactivated terminal alkenes achieved under the catalysis of PTH-POP (phe-nylphenothiazine-based porous organic polymer) are reported by Wang, Gao, Zhou and Zhang on page 1136. This method offers a transition-metal-free and recyclable platform to access valuable perfluoroalkylated compounds in a highly efficient fashion.
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封面介绍The catalytic asymmetric reactions involving o-hydroxy- benzyl alcohols, a kind of o-quinone methide precursors with unique advantages, are summarized by Wang, Yang, Zhang and Shi on page 974. This review will open a new window for the design of new kinds of o-hyd- roxybenzyl alcohols and their involved catalytic asym-metric reactions. Notably, this review is dedicated to the special issue “Women Scientists in China” to celebrate the International Women’s Day.
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封面介绍A light-promoted radical tandem cyclization reaction to synthesize difluoroalkylindoles was developed by Zhao, Wei, Ke, and Li on page 1102. By using difluorobromo- esters and 3-alkenyl indoles, varies of fluorine-contain- ing polycyclic indoles were generated in an easy-to- operate and mild in conditions with a wide range of substrate adaptability and good yields.
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封面介绍The reaction of transition metals catalyzed the activation of C(sp3)—H bonds to form carbon-nitrogen bonds has been a challenging and hot research area. Important progress has been made in directing group-assisted C(sp3)—H bond amination reactions, and many catalyst systems based on different transition metals with cheap and efficient amination reagents have been developed. The research progress of transition metal-catalyzed C(sp3)—H nitrene insertion reaction assisted by dire- cting groups in the past decade is reviewed by Yang, Liu, and Wang on page 914
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