Welcome to LookChem.com Sign In|Join Free

Article Doi

Kinetics and Mechanism of the Reaction of Substituted Phenylhydrazones with Thallium(III) Acetate. Reactions of Mercury(II) Acetate with Nitrogen Compounds. Part 8

DOI: 10.1039/P29810001243

Source and publish data:

Journal of the Chemical Society. Perkin transactions II p. 1243 - 1246 (1981)

Update date:2022-09-26

Topics:

Authors:

Butler, Richard N.Butler, Richard N.

Morris, Gerard J.Morris, Gerard J.

O'Donohue, Anne M.O'Donohue, Anne M.

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1039/P29810001243

The reaction of substituted phenylhydrazones with thallium(III) acetate in acetic acid involved an electrophilic attack at the hydrazone amino-NH moiety giving an intermediate which is attacked by solvent at the methine carbon.The Hammett ρ values for substituents in the methine and the N-phenyl rings were -1.05 and -3.6, respectively.Activation thermodynamic parameters ΔEa 17.9, ΔHa 17.2 kcal mol-1, and ΔSa -14.65 cal K-1 mol-1 were measured for p-chlorobenzaldehyde p-nitrophenylhydrazone.The main products from aromatic aldehyde arylhydrazones were N'-acetyl-N-aroyl-N'-arylhydrazines (5).The main products from ketone arylhydrazones were α-acetoxy-α-phenylazo-derivatives of the ketone (4).The unexpected divergence of reactivity of phenylhydrazones with the acatates of Hg(II), Tl(III), and Pb(IV) is discussed.

View More

Products guided by the article

Product name:4-Bromo-benzoic acid N'-acetyl-N'-(4-nitro-phenyl)-hydrazide

Cas No:79650-55-8

79650-55-8

R&D Labs maybe for 79650-55-8

Relevant to this article

Hot Product