Visible-light-mediated metal-free decarboxylative acylations of isocyanides with α-oxocarboxylic acids and water leading to α-ketoamides

2019 ◽  
Vol 21 (22) ◽  
pp. 6051-6055 ◽  
Author(s):  
Yufen Lv ◽  
Pengli Bao ◽  
Huilan Yue ◽  
Jiang-Sheng Li ◽  
Wei Wei
Keyword(s):  
Visible Light ◽  
Rose Bengal ◽  
Metal Free ◽  
Mild Conditions ◽  
Oxocarboxylic Acids

A novel visible-light-induced and Rose Bengal catalyzed strategy has been developed for the synthesis of α-ketoamides via decarboxylative acylations of isocyanides with α-oxocarboxylic acids and water under mild conditions.

scholarly journals Photocatalytic Synthesis of Tetra-Substituted Furans Promoted by Carbon Dioxide

2021 ◽  
Author(s):  
Ya-Ming Tian ◽  
Huaiju Wang ◽  
Ritu Ritu ◽  
Burkhard Koenig
Keyword(s):  
Carbon Dioxide ◽  
Transition Metal ◽  
Visible Light ◽  
Metal Free ◽  
Mild Conditions ◽  
Simple Protocol ◽  
Visible Light Driven ◽  
Substituted Furans ◽  
Photocatalytic Synthesis

We report a simple protocol for the transition metal-free, visible-light-driven conversion of 1,3-diketones to tetra-substituted furan skeleton compounds in carbon dioxide (CO2) atmosphere under mild conditions. It was found that...

A mild, general, and metal-free method for site-specific deuteration induced by visible light using D2O as the source of deuterium atoms

2020 ◽  
Vol 22 (3) ◽  
pp. 669-672 ◽  
Author(s):  
Shuai Shi ◽  
Ruining Li ◽  
Liangming Rao ◽  
Zhankui Sun
Keyword(s):  
Visible Light ◽  
Functional Group ◽  
Site Specific ◽  
Metal Free ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Radical Approach

Visible light induced desulfurization–deuteration method was developed using D2O as the source of deuterium atoms. This radical approach features mild conditions, broad substrate scope, highly efficient D-incorporation and excellent functional group compatibility.

Selective C(sp3)–H activation of simple alkanes: visible light-induced metal-free synthesis of phenanthridines with H2O2 as sustainable oxidants

2021 ◽  
Author(s):  
Yongqiang Zhang ◽  
Yunhe Jin ◽  
Lifang Wang ◽  
Qingqing Zhang ◽  
Changgong Meng ◽  
...  
Keyword(s):  
Visible Light ◽  
Metal Free ◽  
Mild Conditions

The visible light-induced metal-free C(sp3)–H phenanthridinylation of simple alkanes with isonitrile is developed with H2O2 as the terminal green oxidant. This reaction features good yields and selectivities, mild conditions, and...

scholarly journals Eosin Y-catalyzed visible-light-mediated aerobic oxidative cyclization of N,N-dimethylanilines with maleimides

2015 ◽  
Vol 11 ◽  
pp. 425-430 ◽  
Author(s):  
Zhongwei Liang ◽  
Song Xu ◽  
Wenyan Tian ◽  
Ronghua Zhang
Keyword(s):  
Visible Light ◽  
Oxidative Cyclization ◽  
Eosin Y ◽  
Efficient Synthesis ◽  
One Pot ◽  
Bond Functionalization ◽  
Metal Free ◽  
Mild Conditions ◽  
Simple Strategy ◽  
Air Atmosphere

A novel and simple strategy for the efficient synthesis of the corresponding tetrahydroquinolines from N,N-dimethylanilines and maleimides using visible light in an air atmosphere in the presence of Eosin Y as a photocatalyst has been developed. The metal-free protocol involves aerobic oxidative cyclization via sp3 C–H bond functionalization process to afford good yields in a one-pot procedure under mild conditions.

Direct synthesis of hydrazones by visible light mediated aerobic oxidative cleavage of the CC bond

2017 ◽  
Vol 4 (8) ◽  
pp. 1611-1614 ◽  
Author(s):  
Ya Ding ◽  
Hao Li ◽  
Yunge Meng ◽  
Te Zhang ◽  
Jiawen Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Direct Synthesis ◽  
Oxidative Cleavage ◽  
Metal Free ◽  
Mild Conditions

A metal-free protocol through visible light mediated oxidative cleavage of CC bonds to directly construct CN bonds has been developed for the conversion of alkenes to hydrazones under mild conditions.

Transition-metal-free, visible-light-induced oxidative cross-coupling for constructing β-acetylamino acrylosulfones from sodium sulfinates and enamides

2018 ◽  
Vol 5 (1) ◽  
pp. 92-97 ◽  
Author(s):  
Deli Sun ◽  
Ronghua Zhang
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Rose Bengal ◽  
Cross Coupling ◽  
Metal Free

A visible-light-induced, Rose Bengal catalyzed photoredox process for synthesizing β-acetylamino acrylosulfones has been discovered.

Metal-free oxidative phosphinylation of aryl alkynes to β-ketophosphine oxides via visible-light photoredox catalysis

2016 ◽  
Vol 6 (2) ◽  
pp. 413-416 ◽  
Author(s):  
Mei-jie Bu ◽  
Guo-ping Lu ◽  
Chun Cai
Keyword(s):  
Visible Light ◽  
Organic Dye ◽  
Photoredox Catalysis ◽  
Metal Free ◽  
Mild Conditions ◽  
Aryl Alkynes

A visible-light-induced oxidative phosphinylation of arylacetylenes catalyzed by an inexpensive organic dye was demonstrated to be effective under mild conditions.

scholarly journals Visible-light photoredox catalyzed synthesis of pyrroloisoquinolines via organocatalytic oxidation/[3 + 2] cycloaddition/oxidative aromatization reaction cascade with Rose Bengal

2014 ◽  
Vol 10 ◽  
pp. 1233-1238 ◽  
Author(s):  
Carlos Vila ◽  
Jonathan Lau ◽  
Magnus Rueping
Keyword(s):  
Visible Light ◽  
Rose Bengal ◽  
Isoquinoline Alkaloids ◽  
Reaction Conditions ◽  
Metal Free ◽  
Aromatization Reaction ◽  
Oxidative Aromatization ◽  
Catalyzed Oxidation

Pyrrolo[2,1-a]isoquinoline alkaloids have been prepared via a visible light photoredox catalyzed oxidation/[3 + 2] cycloaddition/oxidative aromatization cascade using Rose Bengal as an organo-photocatalyst. A variety of pyrroloisoquinolines have been obtained in good yields under mild and metal-free reaction conditions.

Visible-light-induced cascade radical ring-closure and pyridylation for the synthesis of tetrahydrofurans

2019 ◽  
Vol 21 (8) ◽  
pp. 2082-2087 ◽  
Author(s):  
Yechan Kim ◽  
Kangjae Lee ◽  
Gangadhar Rao Mathi ◽  
Inwon Kim ◽  
Sungwoo Hong
Keyword(s):  
Visible Light ◽  
Ring Closure ◽  
Alkoxy Radical ◽  
Radical Ring ◽  
Metal Free ◽  
Mild Conditions

A novel visible-light-enabled alkoxy radical ring-closure and pyridylation from N-alkenyloxypyridinium salts was achieved under metal-free mild conditions, offering a powerful synthetic tool for assembling various pyridine-tethered tetrahydrofurans.

Metal-free photocatalytic aerobic oxidation of biomass-based furfural derivatives to prepare γ-butyrolactone

2021 ◽  
Author(s):  
Rui Zhu ◽  
Gongyu Zhou ◽  
Jia-nan Teng ◽  
Wanying Liang ◽  
Xinglong Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Aerobic Oxidation ◽  
Metal Free ◽  
Mild Conditions ◽  
Photocatalytic System

A heterogeneous metal-free photocatalytic system was developed for photocatalytic aerobic oxidation of biomass-based furfural derivatives to prepare γ-butyrolactone under mild conditions (visible light, room temperature, no base, and O2 balloon).

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