Nicotinium Dichromate Oxidation of Mandelic Acid and P-Chloromandelic Acid
Shakuntala Mishra1,M.N.Swami2,Nagmani Manikpuri3,Arvind Prasad Dwivedi4
Citation : Shakuntala Mishra,M.N.Swami,Nagmani Manikpuri,Arvind Prasad Dwivedi, Nicotinium Dichromate Oxidation of Mandelic Acid and P-Chloromandelic Acid International Journal of Advanced Research in Chemical Science 2018, 5(2) : 9-13
Nicotinium dichromate (NDC) oxidation of mandelic acid and P-chloromandelic acid in aqueous acetic acid medium in presence of sulphuric acid lead to the formation of corresponding benzaldehyde and P-chlorobenzaldehyde as the main products. The reaction follows fractional order with respect to substrate and first-order with respect to the oxidant. Increase in percentage of acetic acid inhibited the rate of reaction. The reaction is catalysed by acid. The proposed intermediate involves a complex mechanism. The derived rate law was verified graphically. The thermodynamic and activation parameters for the oxidation have been determined and discussed.