K2S2O8-mediated metal-free direct C–H functionalization of quinones using arylboronic acids

2015 ◽  
Vol 2 (12) ◽  
pp. 1616-1620 ◽  
Author(s):  
Andivelu Ilangovan ◽  
Ashok Polu ◽  
Gandhesiri Satish

Direct C–H functionalization of quinones with arylboronic acids is achieved using K2S2O8 as the sole and efficient green catalytic system.

2019 ◽  
Vol 17 (17) ◽  
pp. 4220-4224 ◽  
Author(s):  
Rongzi Ye ◽  
Yuanjie Cao ◽  
Xiaoxiang Xi ◽  
Long Liu ◽  
Tieqiao Chen

A metal-free and radical-free synthesis of heteroaromatic aldehydes was developed through aerobic oxidation of methyl groups in an I2/DMSO/O2 catalytic system.


2018 ◽  
Vol 20 (3) ◽  
pp. 680-684 ◽  
Author(s):  
Shengzong Liang ◽  
Gerald B. Hammond ◽  
Bo Xu

A combined acid HCl/DMPU-acetic acid catalytic system was used in the hydrochlorination of a wide range of unactivated alkenes.


2021 ◽  
Vol 19 (1) ◽  
pp. 273-278
Author(s):  
Göran Schulz ◽  
Andreas Kirschning

The oxidative radical decarboxylation of carboxylic acids with TEMPO as radical scavenger in a biphasic solvent system is reported which is successfully used in a new synthetic approach for the antidepressants indatraline.


2021 ◽  
Author(s):  
Vishakha Rai ◽  
Ganesh Shivayogappa Sorabad ◽  
Mahagundappa Rachappa Maddani

A facile oxidative halogenation of α-oxo ketene dithioacetals is achieved by using a potassium halide and an oxidant combination under transition metal free conditions at ambient temperature.


2021 ◽  
Author(s):  
Vladislav S. Kostromitin ◽  
Artem A. Zemtsov ◽  
Vladimir A. Kokorekin ◽  
Vitalij V. Levin ◽  
Alexander D. Dilman

A method for the addition of fluorinated alkyl bromides to alkenes is described.


RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 64749-64755 ◽  
Author(s):  
Masoud Sadeghi ◽  
Javad Safari ◽  
Zohre Zarnegar

An efficient protocol is developed for the synthesis of 2-aminothiazoles from unfunctionalized methylcarbonyl compounds using Fe3O4 nanoparticle-N-halo reagent catalytic systems.


2015 ◽  
Vol 13 (8) ◽  
pp. 2260-2263 ◽  
Author(s):  
Di Xu ◽  
Li Dai ◽  
Marta Catellani ◽  
Elena Motti ◽  
Nicola Della Ca’ ◽  
...  

Chiral dibenzopyran derivatives were obtained by cinchona alkaloid, as organocatalyst, in combination, for the first time, with palladium/norbornene catalytic system.


2018 ◽  
Vol 54 (11) ◽  
pp. 1359-1362 ◽  
Author(s):  
Yadagiri Kommagalla ◽  
Ken Yamazaki ◽  
Takuma Yamaguchi ◽  
Naoto Chatani

An air stable and inexpensive cobalt-metal, mild and efficient catalytic system.


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