Sci. China Chem. 2020年第2期目录

Original 中国科学化学中国科学化学 2021-12-23

Science China Chemistry

2020年第2期

Asymmetric hydrogenation represents one of the most practical methods to chiral molecules. For the metal-catalyzed asymmetric hydrogenation of α-substituted ketones, cis reductive products are generally obtained due to steric hindrance of substituents. Reported herein is a new example of asymmetric hydrogenation, providing an unprecedented trans β-hydroxy ketones in palladium-catalyzed asymmetric hydrogenative desymmetrization of 1,3-diketones with two adjacent stereocenters including one α-tertiary or quaternary stereocenter. Mechanistic studies and DFT calculations suggested that the rarely observed diastereoselectivity reversal is ascribed to the charge-charge interaction between the palladium and aromatic ring of the substrate, which could not only result in the reversal of the diastereoselectivity, but also improve the reactivity (see the article by Chang-Bin Yu, Heng-Ding Wang, Bo Song, Hong-Qiang Shen, Hong-Jun Fan and Yong-Gui Zhou on pages 215‒221).

Highlights

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Optimization of specific cell-peptide interactions at the bio-material interface viaregulation of nonspecific biofouling interactions

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Invited Review

Photocatalysis: an overview of recent developments and technological advancements

Yuanxing Fang, Yun Zheng, Tao Fang, Yong Chen, Yaodong Zhu, Qing Liang, Hua Sheng, Zhaosheng Li, Chuncheng Chen, Xinchen Wang

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Communications

Temperature-induced Sn(II) supramolecular isomeric frameworks as promising heterogeneous catalysts for cyanosilylation of aldehydes

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Fluorescence detection of hydroxyl radical generated from oxygen reduction on Fe/N/C catalysts

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Articles

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Sci. China Chem. 63(2),208-214 (2020)

Reversal of diastereoselectivity in palladium-arene interaction directed hydrogenative desymmetrization of 1,3-diketones

Chang-Bin Yu, Heng-Ding Wang, Bo Song, Hong-Qiang Shen, Hong-Jun Fan, Yong-Gui Zhou

Sci. China Chem. 63(2),215-221 (2020)

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Side chain engineering of quinoxaline-based small molecular nonfullerene acceptors for high-performance poly(3-hexylthiophene)-based organic solar cells

Bo Xiao, Qianqian Zhang, Gongqiang Li, Mengzhen Du, Yanfang Geng, Xiangnan Sun, Ailing Tang, Yingliang Liu, Qiang Guo, Erjun Zhou

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Rationally pairing photoactive materials for high-performance polymer solar cells with efficiency of 16.53%

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On the origin and regulation of ultrasound responsiveness of block copolymer nanoparticles

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Mitochondria-targeting NIR fluorescent probe for rapid, highly sensitive and selective visualization of nitroxyl in live cells, tissues and mice

Jianguo Wang, Wenping Zhu, Chunbin Li, Pengfei Zhang, Guoyu Jiang, Guangle Niu, Ben Zhong Tang

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