Dual Catalysis: Combination of Photocatalytic Aerobic Oxidation and Metal Catalyzed Alkynylation Reactions-CC Bond Formation Using Visible Light

2012 ◽  
Vol 18 (17) ◽  
pp. 5170-5174 ◽  
Author(s):  
Magnus Rueping ◽  
René M. Koenigs ◽  
Konstantin Poscharny ◽  
David C. Fabry ◽  
Daniele Leonori ◽  
...  
ChemInform ◽  
2012 ◽  
Vol 43 (36) ◽  
pp. no-no
Author(s):  
Magnus Rueping ◽  
Rene M. Koenigs ◽  
Konstantin Poscharny ◽  
David C. Fabry ◽  
Daniele Leonori ◽  
...  

Synlett ◽  
2021 ◽  
Author(s):  
Cyril Ollivier ◽  
Louis Fensterbank ◽  
Mehdi Abdellaoui ◽  
Alexandre Millanvois ◽  
Etienne Levernier

AbstractMetal-catalyzed alkylation of 1,1-dihalovinyl moiety commonly suffers from both a lack of stereoselectivity and the overreaction leading to the dialkylation product. The methodology described herein features a new pathway to alkylate stereoselectively β,β-dichlorostyryl substrates to provide the Z-trisubstituted olefin only with fair to good yields. This cross-coupling reaction bears on the smooth and photoinduced formation of a C-centered radical that engages in a nickel-catalyzed organometallic cycle to form the key Csp2–Csp3 bond.


Synlett ◽  
2018 ◽  
Vol 29 (19) ◽  
pp. 2449-2455 ◽  
Author(s):  
Garret Miyake ◽  
Bin Liu ◽  
Chern-Hooi Lim

C–S cross-couplings are an important class of reactions ­applied across organic synthesis, materials science, and pharma­ceuticals. Several different methodologies have been developed to achieve this significant transformation. However, currently available synthetic procedures significantly rely on transition metals. This article describes historical developments in the field of transition-metal-catalyzed C–S cross-coupling reactions, the development of a visible-light-driven and catalyst-free approach to C–S bond formation, and future outlooks.


2018 ◽  
Author(s):  
Mohit Kapoor ◽  
Pratibha Chand-Thakuri ◽  
Michael Young

Carbon-carbon bond formation by transition metal-catalyzed C–H activation has become an important strategy to fabricate new bonds in a rapid fashion. Despite the pharmacological importance of <i>ortho</i>-arylbenzylamines, however, effective <i>ortho</i>-C–C bond formation from C–H bond activation of free primary and secondary benzylamines using Pd<sup>II</sup> remains an outstanding challenge. Presented herein is a new strategy for constructing <i>ortho</i>-arylated primary and secondary benzylamines mediated by carbon dioxide (CO<sub>2</sub>). The use of CO<sub>2</sub> is critical to allowing this transformation to proceed under milder conditions than previously reported, and that are necessary to furnish free amine products that can be directly used or elaborated without the need for deprotection. In cases where diarylation is possible, a chelate effect is demonstrated to facilitate selective monoarylation.


2017 ◽  
Vol 3 (4) ◽  
pp. 279-317 ◽  
Author(s):  
Nirmalya Mukherjee ◽  
Pintu Maity ◽  
Tubai Ghosh ◽  
Subir Panja ◽  
Brindaban C. Ranu

2018 ◽  
Vol 8 (23) ◽  
pp. 6173-6179 ◽  
Author(s):  
Xu Jin ◽  
Rengui Li ◽  
Yue Zhao ◽  
Xiaodan Liu ◽  
Xiaoqi Wang ◽  
...  

Efficient converting of alcohols to aldehydes under visible light can be achieved on BiVO4 crystals with spatial separation of dual-cocatalysts.


Author(s):  
Ruisheng Liu ◽  
Qishun Liu ◽  
Haoran Meng ◽  
Hongyu Ding ◽  
Jindong Hao ◽  
...  

A metal-free and visible-light-induced strategy has been established for the construction of α-ketoesters via aerobic oxidation of α-diazoesters with dioxygen in air at room temperature.


Author(s):  
Jingjun Li ◽  
Baohui Ren ◽  
Xuyan Yan ◽  
Peixian Li ◽  
Shuiying Gao ◽  
...  

2021 ◽  
Author(s):  
Zhifen Guo ◽  
Xin Liu ◽  
Yan Che ◽  
Hongzhu Xing ◽  
Peng Chen

Development of visible-light-induced photocatalytic reactions using molecular oxygen as terminal oxidant is intriguing in view of the current environmental and energy issues. We report herein the synthesis and characterization of...


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