Synthesis of stilbene derivatives via visible-light-induced cross-coupling of aryl diazonium salts with nitroalkenes using –NO2 as a leaving group

2016 ◽  
Vol 52 (99) ◽  
pp. 14234-14237 ◽  
Author(s):  
Na Zhang ◽  
Zheng-Jun Quan ◽  
Zhang Zhang ◽  
Yu-Xia Da ◽  
Xi-Cun Wang
Keyword(s):  
Visible Light ◽  
Cross Coupling ◽  
Diazonium Salts ◽  
Leaving Group ◽  
Stilbene Derivatives

Photocatalytic coupling of nitroalkenes with diazonium salts.

Photosensitizer-Free, Gold-Catalyzed C-C Cross-Coupling of Boronic Acids and Diazonium Salts Enabled by Visible Light

2017 ◽  
Vol 359 (9) ◽  
pp. 1522-1528 ◽  
Author(s):  
Sina Witzel ◽  
Jin Xie ◽  
Matthias Rudolph ◽  
A. Stephen K. Hashmi
Keyword(s):  
Visible Light ◽  
Cross Coupling ◽  
Boronic Acids ◽  
Diazonium Salts ◽  
Free Gold

The Merger of CF3SO2Na and Palladium Catalysis to Enable Decarboxylative Cross-Coupling for the Synthesis of Aromatic Ketones under Room Temperature

2021 ◽  
Author(s):  
Pan Xie ◽  
Cheng Xue ◽  
Cancan Wang ◽  
Dongdong Du ◽  
Sanshan Shi
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Palladium Catalysis ◽  
Cross Coupling ◽  
Boronic Acids ◽  
Aromatic Ketones ◽  
Aryl Ketones ◽  
Oxocarboxylic Acids

A CF3SO2Na/Pd(OAc)2 co-catalyzed strategy is developed to produce aryl ketones via visible-light-induced decarboxylative cross-coupling of α-oxocarboxylic acids and aryl boronic acids. This process was perfomed under air at room temperature,...

Direct Access to α‐Aminosilanes Enabled by Visible‐Light‐Mediated Multicomponent Radical Cross‐Coupling

2021 ◽  
Author(s):  
Xiaoye Yu ◽  
Constantin Gabriel Daniliuc ◽  
Fatmah Ali Alasmary ◽  
Armido Studer
Keyword(s):  
Visible Light ◽  
Cross Coupling ◽  
Direct Access

Visible-Light-Promoted Cross-Coupling of N-Alkylpyridinium Salts and Nitrostyrenes

2021 ◽  
Author(s):  
Branislav Ferko ◽  
Michaela Marčeková ◽  
Katarína Ráchel Detková ◽  
Jana Doháňošová ◽  
Dušan Berkeš ◽  
...  
Keyword(s):  
Visible Light ◽  
Cross Coupling

New Avenues in Radical Trifluoromethylselenylation with ­Trifluoromethyl Tolueneselenosulfonate

Synlett ◽  
2018 ◽  
Vol 30 (07) ◽  
pp. 777-782 ◽  
Author(s):  
Clément Ghiazza ◽  
Cyrille Monnereau ◽  
Lhoussain Khrouz ◽  
Maurice Médebielle ◽  
Thierry Billard ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Transition Metal ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Diazonium Salts ◽  
Metal Free ◽  
Luminescence Measurement ◽  
Stable Reagent ◽  
Shelf Stable

We demonstrated that the shelf-stable reagent trifluoromethyl tolueneselenosulfonate can be involved in radical trifluoromethylselenylation. Upon visible-light irradiation, the homolysis of the reagent could take place at room temperature. This finding is explored for unprecedented C(sp2)–SeCF3 and C(sp3)–SeCF3 processes under transition-metal-free conditions. Mechanistic investigations, including cyclic voltammetry, luminescence measurement, and EPR studies, allowed the proposal of plausible mechanisms.1 Introduction.2 Reactivity of Reagent I with Diazonium Salts3 Reactivity of Reagent I with Alkenes and Alkynes4 Conclusion

scholarly journals Copper’s rapid ascent in visible-light photoredox catalysis

Science ◽  
2019 ◽  
Vol 364 (6439) ◽  
pp. eaav9713 ◽  
Author(s):  
Asik Hossain ◽  
Aditya Bhattacharyya ◽  
Oliver Reiser
Keyword(s):  
Visible Light ◽  
Organic Dyes ◽  
Low Cost ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Photoredox Catalysis ◽  
Cross Coupling Reactions ◽  
Rapid Ascent ◽  
Catalyzed Reactions ◽  
Metal Catalyzed

Visible-light photoredox catalysis offers a distinct activation mode complementary to thermal transition metal catalyzed reactions. The vast majority of photoredox processes capitalizes on precious metal ruthenium(II) or iridium(III) complexes that serve as single-electron reductants or oxidants in their photoexcited states. As a low-cost alternative, organic dyes are also frequently used but in general suffer from lower photostability. Copper-based photocatalysts are rapidly emerging, offering not only economic and ecological advantages but also otherwise inaccessible inner-sphere mechanisms, which have been successfully applied to challenging transformations. Moreover, the combination of conventional photocatalysts with copper(I) or copper(II) salts has emerged as an efficient dual catalytic system for cross-coupling reactions.

scholarly journals Metal-Free C-Se Cross-Coupling Enabled by Photoinduced Intermolecular Charge Transfer

2021 ◽  
Author(s):  
Chen Zhu ◽  
Serik Zhumagazy ◽  
Huifeng Yue ◽  
Magnus Rueping
Keyword(s):  
Charge Transfer ◽  
Visible Light ◽  
Electron Donor ◽  
Cross Coupling ◽  
Metal Free ◽  
Intermolecular Charge Transfer ◽  
Donor Acceptor

Metal-free C-Se cross-couplings via the formation of electron-donor-acceptor (EDA) complexes have been developed. The visible-light induced reactions can be applied for the synthesis of a series of unsymmetrical diaryl selenides...

Sign in / Sign up

Export Citation Format

Share Document