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C. S. Venkatachalam

Bio: C. S. Venkatachalam is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Aryl & Polarography. The author has an hindex of 5, co-authored 30 publications receiving 78 citations.

Papers
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Journal ArticleDOI
01 Jan 1992
TL;DR: In this article, a complex mechanism has been suggested for the electroreduction of 4-chloro-1-naphthylhydrazonodimedone (4-Cl 1-NHD), 4-Sulpho 1-nphylhydramine (1-NHP-4-SO3H) and 2-hydroxy 4-sulphoencyl hydride (2-SH 0.1 M TEAI-DMSO) using various electrochemical techniques.
Abstract: Studies on the electroreduction of 4-chloro-1-naphthylhydrazonodimedone (4-Cl-1-NHD), 4-sulpho-1-naphthylhydrazonodimedone (1-NHD-4-SO3H) and 2-hydroxy-4-sulpho-1-naphthylhydrazonodimedone (2-OH-1-NHD-4-SO3H) have been carried out in 0.1 M TEAI-DMSO using various electrochemical techniques. Each depolariser exhibits three polarographic dc waves, ac peaks or CV peaks, respectively, the nature of which have been discussed. Further, from the results of microcoulometry and macroscale cpe. a complex mechanism has been suggested for the electroreduction of these hydrazones. The mechanism has been supported by in-situ EPR measurements, evaluations of the charge-transfer rate constants and chromatographic analysis (by TLC and HPLC) on the products of macroscale cpe.

1 citations

DOI
01 Oct 1986
TL;DR: In this paper, a diphenoquinone-diimine intermediate is suggested in the mechanism of 2-NB reduction in methanol-water mixtures, based on the results obtained.
Abstract: The electroreduction of 2-nitrobenzidine (2-NB) in buffered methanol-water mixtures in the composition range 20–80% (v/v) and pH range 2.80–12.00 gave a single six-electron diffusion-controlled irreversible wave. On the basis of the results obtained, a diphenoquinone-diimine intermediate is suggested in the mechanism of 2-NB reduction in methanol-water mixtures.
Journal ArticleDOI
TL;DR: In this paper, the oxidation reactions of aromatic 3,3-sigmatropic systems have been investigated under different conditions viz., (a) anodic oxidation in amphipr
Abstract: The oxidation reactions of aromatic 3,3-sigmatropic systems have been investigated under different conditions viz. , (a) anodic oxidation in amphipr

Cited by
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Journal ArticleDOI
TL;DR: In this paper, the status of research on the dynamics of electrochemical reactions is reviewed, including the electrodissolution of metals, cathodic deposition, and electrocatalytic reactions.

323 citations

Journal ArticleDOI
TL;DR: The different synthetic approaches to synthesize propargylamines, such as A3 couplings and C-H functionalization of alkynes, have been described and organized on the basis of the catalysts employed in the syntheses.
Abstract: Propargylamines are a versatile class of compounds which find broad application in many fields of chemistry. This review aims to describe the different strategies developed so far for the synthesis of propargylamines and their derivatives as well as to highlight their reactivity and use as building blocks in the synthesis of chemically relevant organic compounds. In the first part of the review, the different synthetic approaches to synthesize propargylamines, such as A3 couplings and C–H functionalization of alkynes, have been described and organized on the basis of the catalysts employed in the syntheses. Both racemic and enantioselective approaches have been reported. In the second part, an overview of the transformations of propargylamines into heterocyclic compounds such as pyrroles, pyridines, thiazoles, and oxazoles, as well as other relevant organic derivatives, is presented.

298 citations

Journal ArticleDOI
TL;DR: In this article, the inhibition of Cu 2+, Cd 2+ and Zn 2+ discharge reactions was studied in the presence of C 4 -C 6 alcohols, phenol, benzyl alcohol and cyclohexanol (SAS).

99 citations

Journal ArticleDOI
R K Dieter1, H Yu
TL;DR: In this article, Palladium-catalyzed cyclization of α-amino allenes affords either the pyrroline or pyrrole depending on reaction conditions and provides for introduction of an aryl substituent at the C-3 position of the α-amerino allene.

90 citations