Kinetics Of The Reactions Of Nitro-Activated Diphenyl Ethers With Substituted Anilines In Benzene

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ABSTRACT

The kinetics and mechanisms of the reactions of nitro-activated diphenyl ethers with substituted anilines in benzene have been investigated. The reactions except that of 2', 6'- dinitro phenyi 2, 4, 6- trinitrophenyl ether are base catalysed. For some of the nucleophiles, the rates decreased with increasing temperature in the range 5 - 35 °C resulting in negative enthalpies of activation (AH" -4.1 to -20.0 kJmol. This can be rationalised in terms of a step-wise mechanism involving (at least) a pre-equilibrium. The catalysis of the mono-nitro substituted diphenyl ethers involves two aniline molecules and proceeds by temperature – Independent rates while that of the dinitro substituted ones involves one aniline molecule and proceeds by temperature - dependent rates In the above temperature range. The results are interpreted in terms of a cyclic mechanism assisted in special cases by steric factors.

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APA

The Public Access, L (2021). Kinetics Of The Reactions Of Nitro-Activated Diphenyl Ethers With Substituted Anilines In Benzene. Afribary.com: Retrieved May 16, 2021, from https://afribary.com/works/kinetics-of-the-reactions-of-nitro-activated-diphenyl-ethers-with-substituted-anilines-in-benzene

MLA 8th

Library, The Public Access. "Kinetics Of The Reactions Of Nitro-Activated Diphenyl Ethers With Substituted Anilines In Benzene" Afribary.com. Afribary.com, 04 May. 2021, https://afribary.com/works/kinetics-of-the-reactions-of-nitro-activated-diphenyl-ethers-with-substituted-anilines-in-benzene . Accessed 16 May. 2021.

MLA7

Library, The Public Access. "Kinetics Of The Reactions Of Nitro-Activated Diphenyl Ethers With Substituted Anilines In Benzene". Afribary.com, Afribary.com, 04 May. 2021. Web. 16 May. 2021. < https://afribary.com/works/kinetics-of-the-reactions-of-nitro-activated-diphenyl-ethers-with-substituted-anilines-in-benzene >.

Chicago

Library, The Public Access. "Kinetics Of The Reactions Of Nitro-Activated Diphenyl Ethers With Substituted Anilines In Benzene" Afribary.com (2021). Accessed May 16, 2021. https://afribary.com/works/kinetics-of-the-reactions-of-nitro-activated-diphenyl-ethers-with-substituted-anilines-in-benzene