Hydride-Induced Anionic Cyclization: An Efficient Method for the Synthesis of 6-H-Phenanthridines via a Transition-Metal-Free Process

2015 ◽  
Vol 17 (6) ◽  
pp. 1613-1616 ◽  
Author(s):  
Wei-Lin Chen ◽  
Chun-Yuan Chen ◽  
Yan-Fu Chen ◽  
Jen-Chieh Hsieh
Keyword(s):  
Transition Metal ◽  
Efficient Method ◽  
Metal Free ◽  
Free Process

ChemInform Abstract: Hydride-Induced Anionic Cyclization: An Efficient Method for the Synthesis of 6-H-Phenanthridines via a Transition-Metal-Free Process.

ChemInform ◽  
2015 ◽  
Vol 46 (31) ◽  
pp. no-no
Author(s):  
Wei-Lin Chen ◽  
Chun-Yuan Chen ◽  
Yan-Fu Chen ◽  
Jen-Chieh Hsieh
Keyword(s):  
Transition Metal ◽  
Efficient Method ◽  
Metal Free ◽  
Free Process

Transition-metal-free and facile synthesis of 3-alkynylpyrrole-2, 4-dicarboxylates from methylene isocyanides and propiolaldehyde

2021 ◽  
Author(s):  
Xiaoli Huo ◽  
Xiaojuan Chen ◽  
Liya Yu ◽  
Chong Zhang ◽  
Linghui Zeng ◽  
...  
Keyword(s):  
Transition Metal ◽  
Efficient Method ◽  
Transformation Process ◽  
Facile Synthesis ◽  
Direct Transformation ◽  
Metal Free

A transition-metal-free, facile and efficient method for the synthesis of 3-alkynylpyrrole-2, 4-dicarboxylates from methylene isocyanides and propiolaldehyde with moderate to good yields has been developed. The direct transformation process and...

Electrochemical-induced synthesis of quinazolinones via cathode hydration of o-aminobenzonitriles in aqueous solution

2021 ◽  
Author(s):  
Li Yang ◽  
Huiqing Hou ◽  
Lan Li ◽  
Jin Wang ◽  
Sunying Zhou ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Transition Metal ◽  
Metal Free ◽  
Free Process

An efficient and practical electrochemical-catalyzed transition metal-free process for the synthesis of substituted quinazolinones from simple and readily available o-aminobenzonitriles and aldehydes in water has been accomplished. I2/base and water...

Diiiodine/Potassium Persulfate Mediated Synthesis of 1,2,3-Thiadiazoles from N-Tosylhydrazones and a Thiocyanate Salt as a Sulfur Source under Transition-Metal-Free Conditions

Synlett ◽  
2021 ◽  
Author(s):  
Yadong Sun ◽  
Ablimit Abdukader ◽  
Yuhan Lu ◽  
Chenjiang Liu
Keyword(s):  
Transition Metal ◽  
Efficient Method ◽  
Room Temperature ◽  
Functional Group ◽  
Ammonium Thiocyanate ◽  
Potassium Persulfate ◽  
Sulfur Source ◽  
Coupling Reactions ◽  
Wide Scope ◽  
Metal Free

AbstractA highly efficient method for the synthesis of 1,2,3-thiadiazoles has been developed by utilizing readily available tosylhydrazones and ammonium thiocyanate with ecofriendly EtOH as the solvent at room temperature. The reaction shows a wide scope of substrates and good functional-group tolerance. This protocol can be scaled up to a gram level and can be applied to coupling reactions with 4-(4-bromophenyl)-1,2,3-thiadiazole as the substrate.

Hydride-catalyzed selectively reductive cleavage of unactivated tertiary amides using hydrosilane

2019 ◽  
Vol 9 (15) ◽  
pp. 3874-3878 ◽  
Author(s):  
Wubing Yao ◽  
Rongrong Li ◽  
Jianguo Yang ◽  
Feiyue Hao
Keyword(s):  
Transition Metal ◽  
Reductive Cleavage ◽  
Metal Free ◽  
Free Process ◽  
Tertiary Amides ◽  
Current Systems

The first hydride-catalyzed reductive cleavage of tertiary amides using the hydrosilane as reducing reagent has been developed. This transition-metal-free process may offer a versatile alternative to current systems for the selective reductive cleavage of amides.

Transition-metal-free access to 2-aminopyridine derivatives from 2-fluoropyridine and acetamidine hydrochloride

2018 ◽  
Vol 16 (41) ◽  
pp. 7564-7567 ◽  
Author(s):  
Yibiao Li ◽  
Shuo Huang ◽  
Chunshu Liao ◽  
Yan Shao ◽  
Lu Chen
Keyword(s):  
Transition Metal ◽  
Nucleophilic Substitution ◽  
Efficient Method ◽  
Free Access ◽  
Metal Free ◽  
Catalyst Free ◽  
Hydrolysis Of

Under catalyst-free conditions, an efficient method for the synthesis of 2-aminopyridine derivatives through the nucleophilic substitution and hydrolysis of 2-fluoropyridine and acetamidine hydrochloride has been developed.

ChemInform Abstract: An Efficient, Transition-Metal-Free Process for the Synthesis of Substituted Dihydrofurans via a Michael/Cyclization Tandem Reaction.

ChemInform ◽  
2011 ◽  
Vol 42 (20) ◽  
pp. no-no
Author(s):  
Ming-Yu Wu ◽  
Ming-Qi Wang ◽  
Kun Li ◽  
Xing-Wen Feng ◽  
Ting He ◽  
...  
Keyword(s):  
Transition Metal ◽  
Tandem Reaction ◽  
Metal Free ◽  
Free Process

Green and practical transition metal-free one-pot conversion of substituted benzoic acids to anilines using tosyl azide

2016 ◽  
Vol 3 (12) ◽  
pp. 1680-1685 ◽  
Author(s):  
Andivelu Ilangovan ◽  
Palaniappan Sakthivel ◽  
Pandaram Sakthivel
Keyword(s):  
Transition Metal ◽  
Efficient Method ◽  
Crucial Role ◽  
Benzoic Acids ◽  
Electronic Effects ◽  
One Pot ◽  
Metal Free ◽  
Substituted Benzoic Acids

A simple and efficient method for conversion of 2-iodo/2-nitro benzoic acids and dihydropyranone-fused benzoic acids into corresponding anilines, using tosyl azide, under transition metal-free conditions was developed. Steric and electronic effects play crucial role.

NIS-catalyzed oxidative cyclization of alcohols with amidines: a simple and efficient transition-metal free method for the synthesis of 1,3,5-triazines

2015 ◽  
Vol 13 (45) ◽  
pp. 10973-10976 ◽  
Author(s):  
Abhishek R. Tiwari ◽  
Akash T. ◽  
Bhalchandra M. Bhanage
Keyword(s):  
Transition Metal ◽  
Efficient Method ◽  
Oxidative Cyclization ◽  
Metal Free ◽  
Reaction Works

A simple and efficient method for the synthesis of 1,3,5-triazines by NIS-catalyzed oxidative cyclization of alcohols with amidines has been developed. The reaction works smoothly under transition-metal and phosphine-free conditions.

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