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封面介绍Red light-mediated organic synthesis is reviewed by Zhang, Kong, Zhang, and Jiang on page 3804. It covers representative reaction pathways enabled by 600~700 nm red-light excitation, including single-electron transfer, energy transfer, metal-metal bond homolysis, direct excitation of substrates or complexes, and photoenzymatic catalysis. The review discusses catalyst design, reaction mechanisms, and key factors governing reaction efficiency and selectivity, highlighting red light’s unique merits of deep penetration, low phototoxicity, and mild conditions to suppress undesired excitation and side reactions. -
封面介绍A frustrated ion-pair catalyzed deprotection of acetals and ketals was developed by Yang, Li, Zhang, Zou, Chen, and Jia on page 4067. This protocol enabled rapid and efficient conversion of diverse substrates within 20 min, affording a broad range of carbonyl compounds, including aldehydes, ketones, and complex natural products in high yields. -
封面介绍A photoredox/palladium dual-catalyzed fluoroalkylfluo- rosulfonylation of unactivated olefins was reported by Ma, Liu and co?workers on page 4119. Using aryl trifluoromethyl compounds, 1,4-diazabicyclo[2.2.2]oc- tane bis(sulfur dioxide) adduct (DABSO), and N-fluoro- benzenesulfonimide, the radical sulfur dioxide insertion and fluorination strategy enables one?step installation of fluoroalkyl and fluorosulfonyl groups to access diverse aliphatic sulfonyl fluorides, which can be further diver-sified via SuFEx click chemistry. -
封面介绍N-Vinylamides represent a prominent class of synthetic building blocks that serve as versatile substrates for the construction of cyclic frameworks. The recent advances in cyclization reactions involving N-vinylamides are summarized by Shao, Lin, Xiong, He, and Zou on page 3865. The review describes the synthesis of aminocy-clopropanes, oxazolines, oxazoles, pyridines, and other cyclic compounds, with particular emphasis on reaction mechanisms, substrate scope, stereochemical control, and synthetic applications.
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