scholarly journals Correction: Synthesis of dibenzocycloketones by acyl radical cyclization from aromatic carboxylic acids using methylene blue as a photocatalyst

2020 ◽  
Vol 22 (4) ◽  
pp. 1443-1443
Author(s):  
Hongshuo Jiang ◽  
Guijie Mao ◽  
Hongfeng Wu ◽  
Qi An ◽  
Minghui Zuo ◽  
...  

Correction for ‘Synthesis of dibenzocycloketones by acyl radical cyclization from aromatic carboxylic acids using methylene blue as a photocatalyst’ by Hongshuo Jiang et al., Green Chem., 2019, 21, 5368–5373.

2019 ◽  
Vol 21 (19) ◽  
pp. 5368-5373 ◽  
Author(s):  
Hongshuo Jiang ◽  
Guijie Mao ◽  
Hongfeng Wu ◽  
Qi An ◽  
Minghui Zuo ◽  
...  

An efficient intramolecular radical cyclization reaction via photoredox catalysis was developed for the synthesis of dibenzocycloketone derivatives using methylene blue as a photosensitizer.


2018 ◽  
Author(s):  
Erin Stache ◽  
Alyssa B. Ertel ◽  
Tomislav Rovis ◽  
Abigail G. Doyle

Alcohols and carboxylic acids are ubiquitous functional groups found in organic molecules that could serve as radical precursors, but C–O bonds remain difficult to activate. We report a synthetic strategy for direct access to both alkyl and acyl radicals from these ubiquitous functional groups via photoredox catalysis. This method exploits the unique reactivity of phosphoranyl radicals, generated from a polar/SET crossover between a phosphine radical cation and an oxygen centered nucleophile. We first show the desired reactivity in the reduction of benzylic alcohols to the corresponding benzyl radicals with terminal H-atom trapping to afford the deoxygenated product. Using the same method, we demonstrate access to synthetically versatile acyl radicals which enables the reduction of aromatic and aliphatic carboxylic acids to the corresponding aldehydes with exceptional chemoselectivity. This protocol also transforms carboxylic acids to heterocycles and cyclic ketones via intramolecular acyl radical cyclizations to forge new C–O, C–N and C–C bonds in a single step.


2021 ◽  
pp. 116443
Author(s):  
N. Bensid ◽  
R. Zerdoum ◽  
Z. Hattab ◽  
Y. Boutaleb ◽  
M. Bououdina

ChemInform ◽  
2012 ◽  
Vol 43 (35) ◽  
pp. no-no
Author(s):  
Chao-Jun Hu ◽  
Xiao-Hong Zhang ◽  
Qiu-Ping Ding ◽  
Ting Lv ◽  
Shao-Peng Ge ◽  
...  

2015 ◽  
Vol 31 (1) ◽  
pp. 37-44
Author(s):  
Junichi ODO ◽  
Masahiko INOGUCHI ◽  
Hiroyuki AOKI ◽  
Yuto SOGAWA ◽  
Masahiro NISHIMURA

RSC Advances ◽  
2017 ◽  
Vol 7 (55) ◽  
pp. 34339-34347 ◽  
Author(s):  
Xin Zhong ◽  
Chongwei Cui ◽  
Shuili Yu

The reaction between ozone and natural organic matter (NOM) generates a certain amount of aromatic carboxylic acids (ACAs).


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