Zobrazeno 1 - 10
of 20 726
pro vyhledávání: '"C–H activation"'
Publikováno v:
Green Synthesis and Catalysis, Vol 5, Iss 3, Pp 153-158 (2024)
The peroxygenases are ideal biocatalysts for the selective oxyfunctionalisation of stable C–H bonds. However, the catalytic efficiency of this approach is limited due to enzyme lability toward oxidant H2O2. Although the reported in-situ H2O2 genera
Externí odkaz:
https://doaj.org/article/a81034f627f44428af2f2217fde9cc69
Autor:
Ying Jin, Shengxin Chen, Ruirui Wang, Yumei Liu, Xinxin Li, Yingwei Li, Ruirui Zhang, Ruixia Liu
Publikováno v:
Green Chemical Engineering, Vol 5, Iss 2, Pp 213-221 (2024)
Poly(ionic liquids) (PILs) combined with the macromolecular structure and unique properties of ionic liquids show unlimited potential in catalysis. In this work, a series of metal-based PIL with different ionic ratios were prepared for the selective
Externí odkaz:
https://doaj.org/article/4dbf29be1dd04533a14a0fcfb0344345
Autor:
Tingjie You, Ka‐Pan Shing, Liangliang Wu, Kai Wu, Hua‐Hua Wang, Yungen Liu, Lili Du, Runhui Liang, David Lee Phillips, Xiao‐Yong Chang, Jie‐Sheng Huang, Chi‐Ming Che
Publikováno v:
Advanced Science, Vol 11, Iss 39, Pp n/a-n/a (2024)
Abstract As nitrogen analogues of iron‐oxo species, high‐valent iron‐imido species have attracted great interest in the past decades. FeV‐alkylimido species are generally considered to be key reaction intermediates in Fe(III)‐catalyzed C(sp
Externí odkaz:
https://doaj.org/article/17d5a73129fd489b842db69d462ca341
Autor:
Lorena Capdevila, Max T. G. M. Derks, Marc Montilla, Josep M. Luis, Jana Roithová, Xavi Ribas
Publikováno v:
ChemistryEurope, Vol 2, Iss 5, Pp n/a-n/a (2024)
Abstract Herein, we describe the trifluoro‐ and difluoroethoxylation of C(sp2)‐H bonds using nickel(II) complexes incorporating a model macrocyclic arene substrate. Due to the coordinative properties of the macrocyclic substrate, we were able to
Externí odkaz:
https://doaj.org/article/49d3d1592a34417196263c2ff6285961
Autor:
Zhouping Wu, Guanghui Lv, Zheng Lin, Jiangyan Tang, Jian Chen, Jianghong Liu, Li Hai, Yong Wu
Publikováno v:
Green Synthesis and Catalysis, Vol 5, Iss 2, Pp 108-111 (2024)
The construction of N-fused polycyclic compounds at room temperature via the combination of transition-metal catalyst and photocatalyst has been reported. This novel work has successfully realized LED irradiated C−H activation of iodonium ylides. T
Externí odkaz:
https://doaj.org/article/aceab6960eba4ff7b89bd3b6d12d7ae7
Publikováno v:
Tetrahedron Chem, Vol 12, Iss , Pp 100104- (2024)
A novel palladium(II) catalyzed C–H annulation strategy has been developed for the synthesis of a diverse range of furo[3′,4':5,6]pyrido[3,4-b]indole-1,5(3H)-dione scaffolds. This is the first report on the construction of polycyclic carboline fr
Externí odkaz:
https://doaj.org/article/3744da7bc451470ab26957fd9a458fc6
Akademický článek
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Publikováno v:
Tetrahedron Chem, Vol 11, Iss , Pp 100079- (2024)
A strategy of C3/C4 and C5/C4 bis-C–H functionalization of furfural and 5-hydroxymethylfurfural is presented. This task has been accomplished by the initial iridium-catalyzed C–H borylation of furfural, equipped with an appropriate imine function
Externí odkaz:
https://doaj.org/article/209961c7adfd462496b3a21d29d7bf36
Publikováno v:
Chemistry, Vol 5, Iss 4, Pp 2713-2755 (2023)
In recent years, transition metal-catalyzed C–H activation and site-selective functionalization have been considered to be valuable synthetic tactics to functionalize organic compounds containing multiple C–H bonds. Pyrene is one of the privilege
Externí odkaz:
https://doaj.org/article/36d22e489df845f9951f456ce3cde2df
Autor:
Jinfeng Sun, Fangfeng Chen, Juan Liu, Yihu Zhang, Dongyu He, Vladimir A. Dodonov, Yanxia Zhao
Publikováno v:
Molecules, Vol 29, Iss 21, p 5021 (2024)
The activation of inert C–H bonds remains a challenge in current chemistry. Here, we report the excellent reactivity of the anionic gallylene species [LGa:][Na(THF)3] (L = [(2,6-iPr2C6H3)NC(CH3)]22−, 1) that allows the selective activation one or
Externí odkaz:
https://doaj.org/article/04b48c64f202465a81edcb0628a7c09c