Efficient photocatalytic chemoselective and stereoselective C–C bond formation over AuPd@N-rich carbon nitride

Author(s):  
Heyan Jiang ◽  
Jie Xu ◽  
Sishi Zhang ◽  
Hongmei Cheng ◽  
Cuicui Zang ◽  
...  

High unsymmetrical chemoselective Ullmann biaryl products and satisfactory Z-type stereoselective Heck reaction products could be achieved through changing the visible light color over AuPd@N-Rich carbon nitride under mild conditions.

2013 ◽  
Vol 91 (5) ◽  
pp. 348-351 ◽  
Author(s):  
Suresh B. Waghmode ◽  
Sudhir S. Arbuj ◽  
Bina N. Wani ◽  
C.S. Gopinath

PdCl2 catalyzed carbon–carbon bond formation (Heck reaction) between substituted aryl halides and olefins was carried out without a ligand, under irradiation with UV–visible light. The results demonstrated that UV–visible light accelerated the rate of the reaction, leading to an excellent yield of corresponding products. The recovered palladium nanoparticles could be thermally recycled several times. PdCl2 gave excellent conversion up to the fifth addition of substrate.


2021 ◽  
Author(s):  
Yang Liu ◽  
Joost Berkhong

An easily available heterogeneous semiconductor material, g-CN, proved to be feasible when combined with homogeneous nickel catalysts for light-mediated C(sp2)-SO2Ar bond formation of aryl bromides with aryl sulfinates under mild conditions and base-free, unlocking a variety of cross-couplings. The metal-free heterogeneous semiconductor is totally recyclable from reaction system, and experimental results demonstrated a series of differently substituted substrates including electron donating groups and electron withdrawing groups can be tolerated with a satisfactory result. The method could even pro-duce the classic drug Dapsone in large scale, showing strong practical application potential.


RSC Advances ◽  
2015 ◽  
Vol 5 (49) ◽  
pp. 39625-39629 ◽  
Author(s):  
Xichang Dong ◽  
Yumin Hu ◽  
Tiebo Xiao ◽  
Lei Zhou

A visible-light induced intramolecular radical cyclization is described. The reaction allows the rapid construction of 2-trifluoromethyl-3-acylindoles in a sequential C–C and C–O bond formation process under mild conditions.


2018 ◽  
Vol 20 (4) ◽  
pp. 838-842 ◽  
Author(s):  
B. Kurpil ◽  
B. Kumru ◽  
T. Heil ◽  
M. Antonietti ◽  
A. Savateev

Potassium poly(heptazine imide), a carbon nitride based photocatalyst, effectively promotes the Kindler reaction of thioamide bond formation using amines and elemental sulfur as building blocks under visible light irradiation.


2019 ◽  
Vol 21 (23) ◽  
pp. 12346-12352 ◽  
Author(s):  
Kalishankar Bhattacharyya ◽  
Ayan Datta

The production of ammonia (NH3), an important carbon-free chemical, through nitrogen (N2) fixation under mild conditions, is one of the most challenging and attractive chemical processes for industrial applications.


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

RSC Advances ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 6383-6394 ◽  
Author(s):  
Haishuai Li ◽  
Linlin Cai ◽  
Xin Wang ◽  
Huixian Shi

A noval ternary nanocomposite AgCl/Ag3PO4/g-C3N4 was successfully synthesized for photocatalytic degradation of methylene blue, methylparaben and inactivation of E. coli under visible light irradiation, showing excellent photocatalytic degradation performance and stability.


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