DR ANTHONY MELVIN CRASTO,WorldDrugTracker, helping millions, A 90 % paralysed man in action for you, I am suffering from transverse mylitis and bound to a wheel chair, With death on the horizon, nothing will not stop me except God................DR ANTHONY MELVIN CRASTO Ph.D ( ICT, Mumbai) , INDIA 25Yrs Exp. in the feld of Organic Chemistry,Working for GLENMARK GENERICS at Navi Mumbai, INDIA. Serving chemists around the world. Helping them with websites on Chemistry.Million hits on google, world acclamation from industry, academia, drug authorities for websites, blogs and educational contribution

Monday 27 March 2017

Selective Oxidation of Benzylic C–H Using Nanoscale Graphene Oxide as Highly Efficient Carbocatalyst: Direct Synthesis of Terephthalic Acid

 Abstract Image
Nanoscale graphene oxide sheets (NGO), as activated carbocatalysts, were synthesized by a reduction size strategy and used in chemoselective oxidative conversion of benzylic C–H to the corresponding carboxylic acid. On the basis of the results of the optimization process of different parameters, 3 equiv of H2O2 for each C–H group, 100 wt % of NGO in aqueous medium, acetone as a cosolvent, and a reaction temperature of 100 °C were selected as optimum parameters.
In this optimum condition, xylenes and toluene over 24 h with good yield were converted to the corresponding carboxylic acid, and in the case of diphenylmethane and ethylbenzene, these substrates with excellent yield were converted to benzophenone and acetophenone.

Selective Oxidation of Benzylic C–H Using Nanoscale Graphene Oxide as Highly Efficient Carbocatalyst: Direct Synthesis of Terephthalic Acid

Institute of Industrial Chemistry, Iranian Research Organization for Science and Technology (IROST), P.O. Box 33535-111, Tehran, Iran
Org. Process Res. Dev., Article ASAP
DOI: 10.1021/acs.oprd.7b00056
 
*Tel.: +98 21 56276031. E-mail address: sedrpoushan1395@gmail.com (Alireza Sedrpoushan).
 
str1 str2 str3
///////

No comments:

Post a Comment