ChemInform Abstract: Synthesis of 6-Substituted Phenanthridines by Metal-Free, Visible-Light Induced Aerobic Oxidative Cyclization of 2-Isocyanobiphenyls with Hydrazines.

ChemInform ◽  
2014 ◽  
Vol 45 (36) ◽  
pp. no-no
Author(s):  
Tiebo Xiao ◽  
Linyong Li ◽  
Guoliang Lin ◽  
Qile Wang ◽  
Ping Zhang ◽  
...  
Keyword(s):  
Visible Light ◽  
Oxidative Cyclization ◽  
Metal Free

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.

Visible-light-initiated photo-oxidative cyclization of phenolic amidines using CBr4 – A metal free approach to 2-aminobenzoxazoles

RSC Advances ◽  
2014 ◽  
Vol 4 (11) ◽  
pp. 5815 ◽  
Author(s):  
Twinkle Keshari ◽  
Vishnu P. Srivastava ◽  
Lal Dhar S. Yadav
Keyword(s):  
Visible Light ◽  
Oxidative Cyclization ◽  
Metal Free

Synthesis of 6-substituted phenanthridines by metal-free, visible-light induced aerobic oxidative cyclization of 2-isocyanobiphenyls with hydrazines

2014 ◽  
Vol 16 (5) ◽  
pp. 2418-2421 ◽  
Author(s):  
Tiebo Xiao ◽  
Linyong Li ◽  
Guoliang Lin ◽  
Qile Wang ◽  
Ping Zhang ◽  
...  
Keyword(s):  
Visible Light ◽  
Oxidative Cyclization ◽  
Organic Dye ◽  
Metal Free ◽  
Eosin B

Irradiation of hydrazines and 2-isocyanobiphenyls with visible-light in the presence of organic dye eosin B generates various 6-substituted phenanthridines in good yields.

Metal-free visible-light-induced oxidative cyclization reaction of 1,6-enynes and arylsulfinic acids leading to sulfonylated benzofurans

2020 ◽  
Vol 31 (1) ◽  
pp. 67-70 ◽  
Author(s):  
Leilei Wang ◽  
Min Zhang ◽  
Yulong Zhang ◽  
Qishun Liu ◽  
Xiaohui Zhao ◽  
...  
Keyword(s):  
Visible Light ◽  
Oxidative Cyclization ◽  
Cyclization Reaction ◽  
Metal Free

Visible light-induced tandem oxidative cyclization of 2-alkynylanilines with disulfides (diselenides) to 3-sulfenyl- and 3-selenylindoles under transition metal-free and photocatalyst-free conditions

2017 ◽  
Vol 4 (7) ◽  
pp. 1322-1330 ◽  
Author(s):  
Qing Shi ◽  
Pinhua Li ◽  
Yan Zhang ◽  
Lei Wang
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Oxidative Cyclization ◽  
Efficient Synthesis ◽  
Metal Free

A simple and efficient synthesis of 3-sulfenyl (3-selenyl) indoles via visible light-induced cyclization of 2-alkynylanilines with disulfides(diselenides) was developed under transition metal-free and photocatalyst-free conditions.

Visible-light initiated oxidative cyclization of phenyl propiolates with sulfinic acids to coumarin derivatives under metal-free conditions

2015 ◽  
Vol 51 (35) ◽  
pp. 7520-7523 ◽  
Author(s):  
Wenchao Yang ◽  
Shuai Yang ◽  
Pinhua Li ◽  
Lei Wang
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Oxidative Cyclization ◽  
Coumarin Derivatives ◽  
Metal Free ◽  
Sulfinic Acids

A visible-light initiated oxidative cyclization of phenyl propiolates with sulfinic acids has been developed at room temperature under metal-free conditions.

Regioselective C3-H Trifluoromethylation of 2H-Indazole Under Transition-Metal-Free Photoredox Catalysis

2019 ◽  
Author(s):  
Arumugavel Murugan ◽  
Venkata Nagarjuna Babu ◽  
Nagaraj Sabarinathan ◽  
Sharada Duddu. S
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Practical Approach ◽  
Hypervalent Iodine ◽  
Radical Mechanism ◽  
Photoredox Catalysis ◽  
Metal Free

Here we report a visible-light-promoted metal-free regioselective C3-H trifluoromehtylation reaction that proceeds via radical mechanism and which supported by control experiments. The combination of photoredox catalysis and hypervalent iodine reagent provides a practical approach for the present trifluoromethylation reaction and synthesis of a library of trifluoromethylated indazoles.

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