Silicon semiconductor-assisted Brønsted acid-catalyzed dehydration: Highly selective synthesis of 5-hydroxymethylfurfural from fructose under visible light irradiation

2014 ◽  
Vol 147 ◽  
pp. 1009-1014 ◽  
Author(s):  
Ken Tsutsumi ◽  
Natsuki Kurata ◽  
Eri Takata ◽  
Kayo Furuichi ◽  
Masaru Nagano ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Selective Synthesis ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brönsted Acid ◽  
Acid Catalyzed

An uncommon use of irradiated flavins: Brønsted acid catalysis

2020 ◽  
Vol 56 (42) ◽  
pp. 5661-5664
Author(s):  
Yukihiro Arakawa ◽  
Tomohiro Mihara ◽  
Hiroki Fujii ◽  
Keiji Minagawa ◽  
Yasushi Imada
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Acid Catalysis ◽  
Light Irradiation ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Mild Conditions ◽  
Brönsted Acid ◽  
Bronsted Acid Catalysis

Visible light irradiation to flavins in the presence of thiols and O2 provides Brønsted acidic species that can be used as efficient catalysts for thioacetalizations and for Mannich-type reactions under non-irradiation and mild conditions.

Brønsted acid cocatalysis in photocatalytic intramolecular coupling of tertiary amines: efficient synthesis of 2-arylindols

2016 ◽  
Vol 14 (31) ◽  
pp. 7447-7450 ◽  
Author(s):  
Xiaoqian Yuan ◽  
Xinxin Wu ◽  
Shupeng Dong ◽  
Guibing Wu ◽  
Jinxing Ye
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Coupling Reaction ◽  
Bronsted Acid ◽  
Tertiary Amines ◽  
Brønsted Acid ◽  
Efficient Synthesis ◽  
Unsaturated Ketones ◽  
Brönsted Acid

We report herein a highly efficient intramolecular coupling reaction of tertiary amines and ketones (α,β-unsaturated ketones) by using a Brønsted acid as a cocatalyst, affording 2-arylindols in good to excellent yields (up to 92%) under visible light irradiation at room temperature.

Brønsted Acid Catalyzed and NIS-Promoted Cyclization of Diynones: Selective Synthesis of 4-Pyrone, 4-Pyridone, and 3-Pyrrolone Derivatives

2013 ◽  
Vol 78 (23) ◽  
pp. 12018-12028 ◽  
Author(s):  
Yi-Feng Qiu ◽  
Fang Yang ◽  
Zi-Hang Qiu ◽  
Mei-Jin Zhong ◽  
Li-Jing Wang ◽  
...  
Keyword(s):  
Selective Synthesis ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brönsted Acid ◽  
Acid Catalyzed

Radical Addition Reaction between Chromenols and Toluene Derivatives Initiated by Brønsted Acid Catalyst under Light Irradiation

2021 ◽  
Author(s):  
jun kikuchi ◽  
Shota Kodama ◽  
Masahiro Terada
Keyword(s):  
Addition Reaction ◽  
Acid Catalyst ◽  
Radical Addition ◽  
Light Irradiation ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brönsted Acid ◽  
Brønsted Acid Catalyst ◽  
Acid Catalyzed ◽  
Brönsted Acid Catalyst

A Brønsted acid-catalyzed benzylic C(sp3)-H functionalization of toluene and its derivatives was accomplished through the photo-excitation of benzopyrylium cation intermediates. Light irradiation promoted the reaction of chromenols with toluene and...

Synthetic Scope of Brønsted Acid-Catalyzed Reactions of Carbonyl Compounds and Ethyl Diazoacetate

2021 ◽  
Author(s):  
Mizzanoor Rahaman ◽  
M. Shahnawaz Ali ◽  
Khorshada Jahan ◽  
Damon Hinz ◽  
Jawad Bin Belayet ◽  
...  
Keyword(s):  
Carbonyl Compounds ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Ethyl Diazoacetate ◽  
Brönsted Acid ◽  
Acid Catalyzed ◽  
Catalyzed Reactions

Brønsted Acid-Catalyzed Friedel-Crafts-type Alkylation of Arenes with αAryl Diazoacetates

2021 ◽  
pp. 152751
Author(s):  
Wenming Chen ◽  
Guifang Chen ◽  
Biao Wang ◽  
Wei Wang ◽  
Wei Huang ◽  
...  
Keyword(s):  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brönsted Acid ◽  
Acid Catalyzed
Sign in / Sign up

Export Citation Format

Share Document