Graphene oxide‐catalyzed C Sp3 –H activation of methylarenes in aqueous medium: A unified metal‐free access to amides and benzimidazoles

2019 ◽  
Vol 33 (11) ◽  
Author(s):  
Anshu Dandia ◽  
Dinesh Kumar Mahawar ◽  
Ruchi Sharma ◽  
Ranveer Singh Badgoti ◽  
Kuldeep S. Rathore ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Aqueous Medium ◽  
Free Access ◽  
Metal Free

Metal-Free Sustainable Synthesis of Amides via Oxidative Amidation Using Graphene Oxide as Carbocatalyst in Aqueous Medium

2019 ◽  
Vol 149 (11) ◽  
pp. 3169-3175
Author(s):  
Anshu Dandia ◽  
Sonam Parihar ◽  
Pratibha Saini ◽  
Kuldeep S. Rathore ◽  
Vijay Parewa
Keyword(s):  
Graphene Oxide ◽  
Aqueous Medium ◽  
Metal Free ◽  
Oxidative Amidation

scholarly journals The graphite-catalyzed ipso-functionalization of arylboronic acids in an aqueous medium: metal-free access to phenols, anilines, nitroarenes, and haloarenes

RSC Advances ◽  
2021 ◽  
Vol 11 (29) ◽  
pp. 18040-18049
Author(s):  
Anshu Dandia ◽  
Ruchi Sharma ◽  
Pratibha Saini ◽  
Ranveer Singh Badgoti ◽  
Kuldeep S. Rathore ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Free Access ◽  
Metal Free ◽  
Arylboronic Acids ◽  
Phenylboronic Acids

An efficient, metal-free, and sustainable strategy has been described for the ipso-functionalization of phenylboronic acids using air as an oxidant in an aqueous medium.

Practical carbocatalysis by graphene oxide nanosheets in aqueous medium towards the synthesis of diversified dibenzo[1,4]diazepine scaffolds

RSC Advances ◽  
2016 ◽  
Vol 6 (91) ◽  
pp. 88904-88910 ◽  
Author(s):  
Nazia Kausar ◽  
Prasun Mukherjee ◽  
Asish R. Das
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Aqueous Medium ◽  
Heterogeneous Catalyst ◽  
Graphene Oxide Nanosheets ◽  
Reaction Conditions ◽  
Green Protocol ◽  
Metal Free

Metal free green protocol in aqueous medium. Use of GO nanosheets as exclusive heterogeneous catalyst. Almost intact catalytic activity upto the 5th run. Mild reaction conditions preserve sensitive structural moeities.

A Sequential Ugi-Smiles / Transition-Metal-Free Endo-Dig Conia-ene Cyclization: The Selective Synthesis of Saccharin Substituted 2,5-dihydropyrroles

2021 ◽  
Author(s):  
Hassan Seyrani ◽  
Sorour Ramezanpour ◽  
Aref Vaezghaemi ◽  
Farzad Kobarfard
Keyword(s):  
Transition Metal ◽  
Free Access ◽  
Selective Synthesis ◽  
Metal Free ◽  
Mild Conditions

A convenient, transition-metal-free access to a series of unprecedented saccharin substituted 2,5-dihydropyrroles is reported. This approach employs a post-Ugi-Smiles 5-endo-dig Conia-ene cyclization sequence in mild conditions while incorporating a series...

High Yield Controlled Synthesis of Nano-Graphene Oxide by Water Electrolytic Oxidation of Glassy Carbon for Metal-Free Catalysis

ACS Nano ◽  
2019 ◽  
Vol 13 (8) ◽  
pp. 9482-9490 ◽  
Author(s):  
Qinwei Wei ◽  
Songfeng Pei ◽  
Guodong Wen ◽  
Kun Huang ◽  
Zhaohong Wu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Glassy Carbon ◽  
High Yield ◽  
Controlled Synthesis ◽  
Metal Free ◽  
Electrolytic Oxidation ◽  
Nano Graphene

Synthesis of 2,3-dihydroquinazolinones and quinazolin-4(3H)-ones catalyzed by graphene oxide nanosheets in an aqueous medium: “on-water” synthesis accompanied by carbocatalysis and selective C–C bond cleavage

RSC Advances ◽  
2016 ◽  
Vol 6 (27) ◽  
pp. 22320-22330 ◽  
Author(s):  
Nazia Kausar ◽  
Indranil Roy ◽  
Dipankar Chattopadhyay ◽  
Asish R. Das
Keyword(s):  
Graphene Oxide ◽  
Aqueous Medium ◽  
Room Temperature ◽  
Bond Cleavage ◽  
Graphene Oxide Nanosheets ◽  
Graphene Oxide Nanosheet

Graphene oxide nanosheet catalyzed strategies for construction of 2,3-dihydroquinazolinones and quinazolin-4(3H)-ones starting from anthranilamide and an aldehyde/ketone in aqueous medium at room temperature have been realized.

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