Rhodium-catalyzed synthesis of quinolines and imines under mild conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 51570-51575 ◽  
Author(s):  
Dilip Kumar T. Yadav ◽  
Bhalchandra M. Bhanage
Keyword(s):  
Aqueous Medium ◽  
Catalytic System ◽  
Solvent Free ◽  
Mild Conditions ◽  
Solvent Free Conditions

An efficient protocol for the synthesis of quinolines in aqueous medium using a Rh(ii)acetate/TPPTS recyclable catalytic system has been developed. Furthermore, imines were also synthesized from benzylamines in moderate to good yields under solvent free conditions.

A novel zinc based binary catalytic system for CO2utilization under mild conditions

2016 ◽  
Vol 3 (2) ◽  
pp. 156-164 ◽  
Author(s):  
Willi Desens ◽  
Christina Kohrt ◽  
Anke Spannenberg ◽  
Thomas Werner
Keyword(s):  
Catalytic System ◽  
Building Block ◽  
Solvent Free ◽  
Cyclic Carbonates ◽  
Mild Conditions ◽  
Solvent Free Conditions

A novel zinc based binary catalytic system for the synthesis of cyclic carbonates under mild and solvent-free conditions utilizing CO2as a C1 building block is reported.

scholarly journals Homocoupling of terminal alkynes catalyzed by CuCl under solvent-free conditions

2021 ◽  
pp. 174751982110325
Author(s):  
Yan Xiao ◽  
Jiyu Gao ◽  
Peng Chen ◽  
Guangliang Chen ◽  
Zicheng Li ◽  
...  
Keyword(s):  
Functional Group ◽  
Reaction Times ◽  
Environmentally Friendly ◽  
Solvent Free ◽  
Copper Salt ◽  
Terminal Alkynes ◽  
Mild Conditions ◽  
Solvent Free Conditions ◽  
Environmentally Friendly Process

A series of symmetrical 1,4-disubstituted buta-1,3-diynes is prepared with excellent yields (up to 95%) through homocoupling of terminal alkynes catalyzed by a copper salt under solvent-free conditions. This method provides an environmentally friendly process to prepare 1,3-diynes in short reaction times under mild conditions. Furthermore, the method is suitable for a wide substrate scope and has excellent functional group compatibility. The reaction can also be scaled up to gram level.

A multicomponent reaction on a ‘free’ KCC-1 catalyst at room temperature under solvent free conditions by visible light

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 54236-54240 ◽  
Author(s):  
Seyed Mohsen Sadeghzadeh
Keyword(s):  
Visible Light ◽  
Multicomponent Reaction ◽  
Efficient Method ◽  
Room Temperature ◽  
Solvent Free ◽  
Green Protocol ◽  
Mild Conditions ◽  
Solvent Free Conditions

A green and efficient method for the synthesis of various triazolo[1,2-a]indazoletrione under mild conditions is reported, that making it a genuinely green protocol.

ChemInform Abstract: A Metal-Free Catalytic System for the Oxidation of Benzylic Methylenes and Primary Amines under Solvent-Free Conditions.

ChemInform ◽  
2010 ◽  
Vol 41 (17) ◽  
Author(s):  
Jintang Zhang ◽  
Zhentao Wang ◽  
Ye Wang ◽  
Changfeng Wan ◽  
Xiaoqi Zheng ◽  
...  
Keyword(s):  
Catalytic System ◽  
Solvent Free ◽  
Primary Amines ◽  
Metal Free ◽  
Solvent Free Conditions

scholarly journals LiHSO4/SiO2as a New, Efficient and Reusable Catalytic System for the Chemoselective Conversion of Aldehydes to Acylals under Solvent-Free Conditions

2009 ◽  
Vol 6 (s1) ◽  
pp. S390-S396 ◽  
Author(s):  
Abdolkarim Zare ◽  
Alireza Hasaninejad ◽  
Esmael Rostami ◽  
Ahmad Reza Moosavi-Zare ◽  
Maria Merajoddin ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Acetic Anhydride ◽  
Catalytic System ◽  
Catalytic Amount ◽  
Significant Loss ◽  
Solvent Free ◽  
Reaction Conditions ◽  
Highly Efficient ◽  
Solvent Free Conditions

A highly efficient, green and expeditious solvent-free method is described for the chemoselective conversion of aldehydes to the corresponding acylals in excellent yields, using acetic anhydride in the presence of catalytic amount (20 mol%) of silica-supported LiHSO4. Ketones does not react under these reaction conditions. LiHSO4/SiO2can be recovered and reused without any significant loss of its catalytic activity.

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