Results 261 to 270 of about 672,683 (358)

Nickel‐Catalyzed Enantioconvergent Arylation of Unactivated Cyclic Electrophiles: Asymmetric Synthesis of 3‐Substituted Pyrrolidines

Angewandte Chemie, EarlyView.
Metal‐catalyzed enantioconvergent substitutions of unactivated cyclic electrophiles by organometallic nucleophiles have not previously been reported. Herein, a chiral nickel catalyst is described that achieves this objective, coupling 3‐iodopyrrolidine derivatives with arylzinc nucleophiles.
Ting Hei Matthew Wong, Xiaoyu Tong, Gregory C. Fu   +2 more
wiley   +1 more source

Guest-induced porous gating of a fluorescent nonporous adaptive crystal for efficient radioactive iodine sorption. [PDF]

Nat Commun
Zhang Q, Liu X, Guo Y, Liu S, Ge F, Gong Y, Zhao M, Song Y, Liu Y, Sun D, Hu Q.   +10 more
europepmc   +1 more source

Iterative Synthesis of Pentacene Derivatives with Continuous Boron–Oxygen Bonds

Angewandte Chemie, EarlyView.
An iterative synthetic strategy enables the controlled introduction of continuous multiple B–O bonds at the zigzag edge of acenes. A simple two‐step cycle—ipso iodination and Suzuki cross‐coupling/condensation—efficiently constructs BO‐acenes ranging from naphthalene to pentacene.
Seonghwa Jeong, Si‐In Kim, Jonghwan Lee, Hwon Kim, Jinuk Jang, Jiyeon Kim, Wonyoung Choe, Seung Kyu Min, Young S. Park   +8 more
wiley   +1 more source

Influence of a Vegan Diet on Child Health and Development: A Scoping Review. [PDF]

Nutr Rev
Brits E, le Grange E.
europepmc   +1 more source

Ring‐Opening Arylation of Cyclic Diaryliodoniums via Cyclic Triaryliodanes as Aryne Precursors and Dynamic Aryl Reservoirs

Angewandte Chemie, EarlyView.
Cyclic diaryliodonium salts engage aryl Grignard reagents to trigger a self‐propagating aryne–arylation cycle. Transient cyclic triaryliodanes serve as aryne precursors and dynamic aryl reservoirs, delivering iodine‐capped teraryls with predominant meta‐selectivity. The preserved C─I bond enables outward π‐extension or inward recyclization.
Daichi Ikeshita, Mao Atarashi, Naohiko Yoshikai   +2 more
wiley   +1 more source

The accuracy of spectral CT with quantitative parameters in differentiating septic from aseptic periprosthetic complications. [PDF]

Insights Imaging
Xu Z, Zhou S, Zhao J, Zhu T, Sheng B, Ali S, Zeng W, Pu Y, Yang H.   +8 more
europepmc   +1 more source

Solvent‐Induced Covalent Bond Softening Boosts Battery Voltage

Angewandte Chemie, EarlyView.
The strong attractive interaction between the nucleophilic center of the solvent and the electrophilic region of the covalently bonded cathode fragment triggers charge transfer. This results in the electron population in the antibonding orbital of the covalent bond, leading to bond weakening and elongation, and consequently increasing the cathode ...
Yanyan Wang, Zhijie Wang, Mengzi Geng, Chunzhen Yang, Guangchao Li, Jean‐Marie Tarascon, Biao Zhang   +6 more
wiley   +1 more source

Assessment of iodine nutrition status in individual adults using machine learning: a cross-sectional study integrating multidimensional features. [PDF]

BMC Public Health
Yue ZY, Li CH, Zhang ZX, Zhao M, Zhao T, Zeng XK, Liu YH, Su Y, Li J, Pan HW, Hou X, Xie HL, Liu P.   +12 more
europepmc   +1 more source