62093-68-9

Upstream product

• 529-19-1 2-Methylbenzonitrile 
• 591-51-5 phenyllithium 
• 62-53-3 aniline 
• 529-20-4 2-methylphenyl aldehyde 
• 34143-82-3 (E)-N-phenyl-1-(o-tolyl)methanimine 
• 2936-57-4 <(2-Methylphenyl)phenylmethylene>ammonium chloride 
• 119970-99-9 N-(2-methyl-α-phenylbenzyl)aniline 

Relevant academic research and scientific papers

Empirical Substituent Parameters for E/Z Equilibrium Constants

A set of substituent parameters λd is proposed which permits the prediction of E/Z equilibrium constants for olefins, enamines, Schiff bases, hydrazones, semicarbazones, oximes, and nitrones.The set includes values for the "non-bonded" electron pairs and the nitrone oxygen as well as for amino or phenyl groups coplanar and orthogonal to the double bond.Ketone anils prefer a perpendicular phenyl group.Principal limitations of the very simple heuristic model are discussed.The model is also applied to the "cis"- and "ortho"-effects, enolates, and Schiff bases of cyclic and bicyclic ketones.