3,4-Dihalo-2(5H)-furanones: a novel oxidant for the Glaser coupling reaction
摘要:
5-Alkoxy-3,4-dihalo-2(5H)-furanones could be used as a kind of novel oxidant in the Glaser coupling reaction. The screening of reaction conditions showed that both PdCl2(PPh3)(2) and 3,4-dichloro-5-methoxy-2(5H)-furanone played crucial roles in the reaction. A possible reaction mechanism was proposed according to the reactivity of 3,4-dihalo-2(5H)-furanones. The new method easily allows the syntheses of alkyl and aryl substituted 1,3-diyne compounds. However, carbyne polymer was unexpectedly obtained when using trimethylsilyl acetylene as the substrate under the Glaser reaction condition.
Synthesis of amino acid derivatives of 5-alkoxy-3,4-dihalo-2(5<i>H</i>)-furanones and their preliminary bioactivity investigation as linkers
作者:Shi-He Luo、Kai Yang、Jian-Yun Lin、Juan-Juan Gao、Xin-Yan Wu、Zhao-Yang Wang
DOI:10.1039/c9ob00736a
日期:——
investigated by comparison with other 2(5H)-furanone compounds by constructing C-O/C-S bonds. The preliminary results of the biological activity assay by the MTT method on a series of cancer cell lines in vitro reveal that the introduction of amino acids basically has no toxic effect. This can lead to these 2(5H)-furanonederivatives being further well-linked with other bioactive moieties with amino or hydroxy
Synthesis and biological evaluation of novel artemisone–piperazine–tetronamide hybrids
作者:Meng-Xue Wei、Jia-Ying Yu、Xin-Xin Liu、Xue-Qiang Li、Jin-Hui Yang、Meng-Wei Zhang、Pei-Wen Yang、Si-Si Zhang、Yu He
DOI:10.1039/d1ra00750e
日期:——
For the first time, six novel artemisone–piperazine–tetronamide hybrids (12a–f) were efficiently synthesised from dihydroartemisinin (DHA) and investigated for their in vitro cytotoxicity against some human cancer cells and benign cells. All the targets showed good cytotoxic activity in vitro. Hybrid 12a exhibited much better inhibitory activity against human liver cancer cell line SMMC-7721 (IC50
Quick construction of a C–N bond from arylsulfonyl hydrazides and C<sub>sp2</sub>–X compounds promoted by DMAP at room temperature
作者:Kai Yang、Juan-Juan Gao、Shi-He Luo、Han-Qing Wu、Chu-Ming Pang、Bo-Wen Wang、Xiao-Yun Chen、Zhao-Yang Wang
DOI:10.1039/c9ra03403j
日期:——
A mild C–N coupling reaction with arylsulfonyl hydrazides and 2(5H)-furanones shows good yields, excellent reaction regioselectivity and functional group tolerance.
Copper(I)-Catalyzed Alkyl- and Arylsulfenylation of 3,4-Dihalo-2(5<i>H</i>
)-furanones (X=Br, Cl) with Sulfoxides under Mild Conditions
作者:Liang Cao、Shi-He Luo、Han-Qing Wu、Liu-Qing Chen、Kai Jiang、Zhi-Feng Hao、Zhao-Yang Wang
DOI:10.1002/adsc.201700600
日期:2017.9.4
An efficient copper(I)/proline sodium salt‐catalyzed alkyl‐ and arylsulfenylation of C(sp2)–X 3,4‐dihalo‐2(5H)‐furanone compounds with sulfoxides is described. For inexpensive C(sp2)–Cl compounds, there is also a satisfactory reactivity with the moderate yields. This transformation provides a novel approach for the utilization of sulfoxides (not only DMSO) as sulfur source at mild temperatures without
Synthesis of N-2(5H)-furanonyl sulfonyl hydrazone derivatives and their biological evaluation in vitro and in vivo activity against MCF-7 breast cancer cells
作者:Kai Yang、Jian-Qiong Yang、Shi-He Luo、Wen-Jie Mei、Jian-Yun Lin、Jia-Qi Zhan、Zhao-Yang Wang
DOI:10.1016/j.bioorg.2020.104518
日期:2021.2
series of (E)-N-2(5H)-furanonyl sulfonyl hydrazone derivatives have been rationally designed and efficiently synthesized by one-pot reaction with good yields for the first time. This green approach with wide substrate range and good selectivity can be achieved at room temperature in a short time in the presence of metal-free catalyst. The cytotoxic activities against three human cancer cell lines of all