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封面介绍The development of X-type silyl ligands for C—H bond functionalization is reviewed by Gao and He on page 641. Silyl ligands, characterized by their electron-dona- ting properties and strong trans-effect, have emerged as prime candidates for promoting the formation of electron-rich metal centers and generating vacant coordination sites. These qualities make them effective in facilitating C—H bond activation processes with particular success in C—H borylation and silylation reactions.
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封面介绍Ketoesters were successfully utilized as the bifunction-alization reagents to react with diaryl alkynes under visible light and photocatalyst or additives free conditions. A series of phenanthrenes containing acyl and ester groups were obtained in high yields by Li, Lv, Wang, Han and Cui on page 686. This protocol features with excellent regioselectivity, high efficiency, and atomic economy.
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封面介绍The recent developments in electro- and electrophoto-chemical 2,3-dichloro-5,6-di-cyano-1,4-benzoquinone (DDQ)-catalyzed C—H/C—F functionalizations are summarized by Li, Sun, Xu and Zeng on page 668. At-tention has been devoted to the developed strategies and associated mechanistic features. The contents are classi-fied into two main categories including C—H function-alization and C—F functionalization.
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封面介绍The conversion of hydrocarbons into high value-added chiral compounds via C(sp3)—H functionalization has attracted a great deal of interest from both academia and industry. In recent years, the combination of photoinduced C(sp3)—H bond cleavage and Ni-catalyzed cross- coupling reactions has emerged as a powerful tool for the selective functionalization of C(sp3)—H bonds. The recent progress in selective C(sp3)—H functionalization via photoredox/nickel dual catalysis is summarized by Wang, Xu, Ping and Kong on page 383.
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研究论文
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