Zobrazeno 1 - 10
of 473
pro vyhledávání: '"Li‐wen Xu"'
Publikováno v:
BMC Neurology, Vol 24, Iss 1, Pp 1-8 (2024)
Abstract Background Excessive daytime sleepiness (EDS) is a common complication of stroke that has a detrimental effect on patients’ daily life and functional recovery. The clinical characteristics and risk factors for poststroke EDS may differ bet
Externí odkaz:
https://doaj.org/article/214f5b4e63d84e349f1c69afc059b28c
Autor:
Jing Zhang, Min Jiang, Chang-Sheng Wang, Kai Guo, Quan-Xin Li, Cheng Ma, Shao-Fei Ni, Gen-Qiang Chen, Yan Zong, Hua Lu, Li-Wen Xu, Xinxin Shao
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-10 (2022)
The pursuit of efficient C–N bond formation is a prime focus of synthetic organic chemistry. Here, the authors documented a base promoted amination between alkyl iodides and diazonium salts via halogen-atom transfer (XAT) process.
Externí odkaz:
https://doaj.org/article/f77f4f399a0e4735b23eae81bcf8db64
Autor:
Yu-Hui Gu, Kai-Wen Ren, Yu Wang, Shi-Hao Wang, Xiao-Hong Yu, Li-Wen Xu, Hui-Hua Li, Hai-Lian Bi
Publikováno v:
Frontiers in Pharmacology, Vol 13 (2022)
Hypertension is one of the common causes of pathological cardiac hypertrophy and a major risk for morbidity and mortality of cardiovascular diseases worldwide. Ubiquitin-Specific Protease 7 (USP7), the first identified deubiquitinating enzymes, parti
Externí odkaz:
https://doaj.org/article/44800c62a3294cdcad0578637e08280a
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Synthesis of fluorinated organic molecules is of high interest for agrochemistry and pharmaceutics, but efficient and general reagents for introducing -CF2- groups are lacking. Here, the authors report the synthesis of 3,3-difluoropropen-1-yl ammoniu
Externí odkaz:
https://doaj.org/article/92708a3260d249239f5a4d4e1d32b26a
Autor:
Xing-Wei Gu, Yu-Li Sun, Jia-Le Xie, Xing-Ben Wang, Zheng Xu, Guan-Wu Yin, Li Li, Ke-Fang Yang, Li-Wen Xu
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Catalytic asymmetric hydrosilylation of internal alkenes has proven elusive due to more favourable double bond reduction or isomerization. Here, the authors show an enantioselective Si-C coupling by hydrosilylation of activated alkenes using a pallad
Externí odkaz:
https://doaj.org/article/22450d70f92445818b71e7af0f1e2de3
Publikováno v:
Journal of Advanced Transportation, Vol 2022 (2022)
Queue length is a crucial measurement of traffic signal control at urban intersections. Conventional queue length estimation methods mostly still rely on fixed detectors. The development of connected vehicles (CV) provides massive amounts of vehicle
Externí odkaz:
https://doaj.org/article/6f0919b0b644465691647db338344dbb
Autor:
Ren-He Tang, Zheng Xu, Yi-Xue Nie, Xu-Qiong Xiao, Ke-Fang Yang, Jia-Le Xie, Bin Guo, Guan-Wu Yin, Xue-Min Yang, Li-Wen Xu
Publikováno v:
iScience, Vol 23, Iss 7, Pp 101268- (2020)
Summary: Chirality widely exists in a diverse array of biologically active molecules and life forms, and the catalytic constructions of chiral molecules have triggered a heightened interest in the fields of chemistry and materials and pharmaceutical
Externí odkaz:
https://doaj.org/article/8a55fe7771284a8ea78eadcd9e535aab
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 11, Iss 1, Pp 2557-2576 (2015)
The Cu(I)-catalyzed azide-alkyne cycloaddition reaction, also known as click chemistry, has become a useful tool for the facile formation of 1,2,3-triazoles. Specifically, the utility of this reaction has been demonstrated by the synthesis of structu
Externí odkaz:
https://doaj.org/article/8d2ece5a55f84843a3280b3799572703
Autor:
Zhen-Yu Jiang, Hua-Meng Yang, Ya-Dong Ju, Li Li, Meng-Xian Luo, Guo-Qiao Lai, Jian-Xiong Jiang, Li-Wen Xu
Publikováno v:
Molecules, Vol 15, Iss 4, Pp 2551-2563 (2010)
To map out the efficient organocatalyst requirements in the Michael addition of 1,3-dicarbonyl indane compounds to nitrostyrenes, a dozen different amino organocatalysts containing a p-toluenesulfonyl group (Ts) have been evaluated; excellent enantio
Externí odkaz:
https://doaj.org/article/d5b8221a64364ad5a3ba6f07d921df46
Publikováno v:
Molecules, Vol 22, Iss 5, p 769 (2017)
It was found that 1,2-trifluoromethylation reactions of ketones, enones, and aldehydes were easily accomplished using the Prakash reagent in the presence of catalytic amounts of cesium carbonate, which represents an experimentally convenient, atom-ec
Externí odkaz:
https://doaj.org/article/112e2ae71ab5407489e06de177c08266