✦ LIBER ✦

Solvent and structural effects on the oxidation of 2,6-diphenyl-piperidin-4-ones by quinolinium chlorochromate

✍ Scribed by S. Saravana Kanna; K. P. Elango

Book ID: 102443183
Publisher: John Wiley and Sons
Year: 2002
Tongue: English
Weight: 118 KB
Volume: 34
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.10047

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The kinetics of oxidation of 3‐R‐2,6‐diphenyl‐piperidin‐4‐ones (where R = H, Me, Et, and i‐Pr) by quinolinium chlorochromate has been studied under pseudo‐first‐order conditions in different pure (protic and aprotic) solvents. The rate data is correlated with different solvent parameters using linear multiple regression analysis. From the regression coefficients, information on the solvent–reactant and the solvent–transition state interactions is obtained and the solvation models are proposed. Reasons for the difference in reactivity with structure are also discussed. © 2002 Wiley Periodicals, Inc. Int J Chem Kinet 34: 585–588, 2002

📜 SIMILAR VOLUMES

DFT study of nitroxide radicals: explici

DFT study of nitroxide radicals: explicit modeling of solvent effects on the structural and electronic characteristics of 4-amino-2,2,6,6-tetramethyl-piperidine-N-oxyl

✍ Larissa N. Ikryannikova; Leila Yu. Ustynyuk; Alexander N. Tikhonov 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 461 KB

An explicit DFT modeling of water surroundings on the electron paramagnetic resonance properties of 4-amino-2,2,6,6-tetramethyl-piperidine-N-oxyl (TA) has been performed. A stepwise hydration of TA is accompanied with certain changes in geometrical parameters (bond lengths and angles) and redistribu

Molecular and crystalline structure of 2

Molecular and crystalline structure of 2-methyl-4,4-diphenyl-5-phenylazo-2-thia-3-aza-4-phosphahepta-2,4-diene-6-one-2-oxide

✍ A. N. Chekhlov 📂 Article 📅 1992 🏛 Springer 🌐 English ⚖ 383 KB

Solvent effects on aromatic nucleophilic

Solvent effects on aromatic nucleophilic substitutions. Part 6. Kinetics of the reaction of 1-chloro-2, 4-dinitrobenzene with piperidine in binary solvent mixtures

✍ P. M. E. Mancini; A. Terenzani; M. G. Gasparri; L. R. Vottero 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 917 KB

The kinetics of the reaction between l-chloro-2,4-dinitrobenzene and piperidine was studied in several completely non-aqueous binary solvent mixtures where the preferential solvation is the rule at 15,Z and 40 "C. The reaction was chosen as the simplest example of aromatic nucleophilic substitution

Solvent effect on the kinetics of oxidat

Solvent effect on the kinetics of oxidation of [Co(en)2amS]2+ by IO4−

✍ Ol'ga Vollárová; Ján Benko; Ivan Valent 📂 Article 📅 1998 🏛 Springer 🌐 English ⚖ 130 KB

Kinetics of oxidation of heterocyclic se

Kinetics of oxidation of heterocyclic secondary alcohols by N-chloro-r-2,c-6-diphenyl-t-3 methyl piperidin-4-one (NCP) in perchloric acid medium

✍ Kuppusamy Selvaraj; Vinayagam Venkateswaran; Krishnasamy Ramarajan 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 406 KB 👁 2 views

An investigation of the kinetics of oxidation of epimeric piperidin-4-ols, oxan-4-ols, and cyclohexanol by N-chloro-r-2, c-6-diphenyl-t-3-methylpiperidin-4-one (NCP) in aqueous acetic acid in the presence of perchloric acid shows that the reaction is first-order each in substrate and oxidant. Both H

Kinetics of oxidation of some ortho, met

Kinetics of oxidation of some ortho, meta, and para substituted S-phenylmercaptoacetic Acids by N-Chloro-3-Methyl-2,6-Diphenyl piperidin-4-one in buffered ethanol-water

✍ K. Ganapathy; S. Kabilan 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 354 KB 👁 2 views

The kinetics of oxidation of a number of ortho, meta, and para substituted S-phenylmercaptoacetic acids by N-Chloro-3-Metyl-2,6-Diphenylpiperidin-4-one (NCP) has been studied in buffered ethanol-water (75:25 v/v) of pH 5.46. The reaction is of first order each in [oxidant] and [substrate]. The rate