Catalyst-Free and Solvent-Free Visible Light Assisted Synthesis of Tetrahydrobenzo[b]Pyran Scaffolds at Room Temperature

Author(s):  
Farzaneh Mohamadpour
2017 ◽  
Vol 41 (19) ◽  
pp. 11148-11154 ◽  
Author(s):  
Bhartendu Pati Tripathi ◽  
Anu Mishra ◽  
Pratibha Rai ◽  
Yogesh Kumar Pandey ◽  
Madhulika Srivastava ◽  
...  

Visible light mediated, an eco-friendlier synthetic protocol for dihydropyrano[2,3-c]pyrazoles via catalyst-free and solvent-free conditions at room temperature.


2021 ◽  
Author(s):  
Wenjing Li ◽  
Shun Li ◽  
Lihua Luo ◽  
Yichen Ge ◽  
Jiaqi Xu ◽  
...  

The catalyst-free oxidative cleavage of (Z)-triaryl-substituted alkenes bearing pyridyl motif with ambient air under irradiation of blue LED at room temperature has been developed. The reaction was facile and scalable,...


RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 54236-54240 ◽  
Author(s):  
Seyed Mohsen Sadeghzadeh

A green and efficient method for the synthesis of various triazolo[1,2-a]indazoletrione under mild conditions is reported, that making it a genuinely green protocol.


2018 ◽  
Vol 20 (24) ◽  
pp. 5540-5549 ◽  
Author(s):  
Somayeh Firoozi ◽  
Mona Hosseini-Sarvari ◽  
Mehdi Koohgard

Nano-sized CdS was successfully prepared, fully characterized and applied as a highly efficient reusable photocatalyst for the condensation of tertiary amines with double and triple bonds via a C–H activation approach.


2017 ◽  
Vol 19 (3) ◽  
pp. 844-852 ◽  
Author(s):  
Priti Sharma ◽  
Yoel Sasson

Photocatalyst Ru–g-C3N4advantages: no base use, room temperature, visible light, solvent free, nontoxic, stable, recyclable reaction process.


2020 ◽  
Vol 17 (5) ◽  
pp. 403-407
Author(s):  
Rui Du ◽  
Liangliang Han ◽  
Zhongqiang Zhou ◽  
Victor Borovkov

The synthesis of 3-(aryl(piperidin-1-yl)methyl)-4-hydroxyquinolin-2(1H)-one derivatives via catalyst-free multicomponent reaction is described. The reaction of 4-hydroxyquinolin-2(1H)-one, piperidine, and 4-chlorobenzaldehyde was carried out in different solvents and under solvent-free conditions at room temperature. The best solvent in terms of the yield and reaction time was found to be dichloromethane. Most substituted benzaldehydes reacted with 4-hydroxyquinolin-2(1H)-one and piperidine to afford corresponding products in good-to-excellent yields. Aldehydes with electronwithdrawing groups were more reactive to exhibit higher reaction rates. However, 2-substituted benzaldehydes did not react with 4-hydroxyquinolin-2(1H)-one and piperidine under the reaction condition. Aldehydes bearing a hydroxyl group failed to produce the corresponding products.


2016 ◽  
Vol 36 (7) ◽  
pp. 1706
Author(s):  
Yanian Gao ◽  
Mengye Zhang ◽  
Haiyan Qian ◽  
Qianwen Xie ◽  
Ming Chen ◽  
...  

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