Výsledky vyhledávání - "Xian-Chen He"

A phosphine-catalysed one-pot domino sequence to access cyclopentene-fused coumarins

Autor: Kai Chen, Zhen-Zhen Xie, Yu Zheng, Yan-Shan Chen, Hua Yang, Zhi-Jun Chen, Jun-An Xiao, Hao-Yue Xiang, Xian-Chen He

Publikováno v: Organic & Biomolecular Chemistry. 19:7074-7080

A novel phosphine-catalysed, one-pot domino approach for the annulation of 2-formylphenyl alkynoates with activated methylene compounds to construct various cyclopentene-fused dihydrocoumarins is reported. This developed strategy provides a facile an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4a03b3830125660d4b3a2807a2ee07f
https://doi.org/10.1039/d1ob01143j

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Programmable iodization/deuterolysis sequences of phosphonium ylides to access deuterated benzyl iodides and aromatic aldehydes

Autor: Yu Zheng, Xian-Chen He, Jie Gao, Zhen-Zhen Xie, Zhi-Wei Wang, Zhi-Lin Liu, Kai Chen, Hao-Yue Xiang, Xiao-Qing Chen, Hua Yang

Publikováno v: Chemical communications (Cambridge, England). 58(26)

Herein, a tunable iodization/deuterolysis protocol for phosphonium ylides by employing D2O as the deuterium source was designed.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f42d27bc1a01869eda6b43ea229b1f8
https://pubmed.ncbi.nlm.nih.gov/35274648

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Phosphonium Ylide-Mediated Programmable Fluorination to Access Mono- and Difluoromethylarenes

Autor: Xiaoqing Chen, Wen-Shuo Cheng, Zhen-Zhen Xie, Kai Chen, Hao-Yue Xiang, Xian-Chen He, Hua Yang, Yan-Shan Chen, Yu Zheng

Publikováno v: Organic letters. 23(7)

Compounds bearing fluorinated moieties are pervasive in a wide range of pharmaceuticals and agrochemicals. The installation of fluorinated units is a persistently vital task in synthetic chemistry, where facile and manipulable assays are highly deman

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::387e7bca1b24f9f689e3932a955b6976
https://pubmed.ncbi.nlm.nih.gov/33739847

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Research on permutation flow shop scheduling problems with general position-dependent learning effects

Autor: Jun Wang, Lin-Hui Sun, Kai Cui, Ju-Hong Chen, Xian-Chen He

Publikováno v: Annals of Operations Research. 211:473-480

Machine learning exists in many realistic scheduling situations. This study focuses on permutation flow shop scheduling problems, where the actual processing time of a job is defined by a general non-increasing function of its scheduled position, i.e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e0d3d85b62a37090f39c6dd6649f3585
https://doi.org/10.1007/s10479-013-1481-6

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Some results of the worst-case analysis for flow shop scheduling with a learning effect

Autor: Ju-Hong Chen, Kai Cui, Lin-Hui Sun, Jun Wang, Xian-Chen He

Publikováno v: Annals of Operations Research. 211:481-490

This article considers flow shop scheduling problems with a learning effect. By the learning effect, we mean that the processing time of a job is defined by a function of its position in a processing permutation. The objective is to minimize the tota

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b3cb250e55baf16c326c3f42ba602747
https://doi.org/10.1007/s10479-013-1368-6

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