Symmetrically bifurcate hydrogen bonding—IV : Steric requirements in symmetrically hydrogen-bonded bis(β-acylvinyl)amines and their isomers期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Symmetrically bifurcate hydrogen bonding—IV : Steric requirements in symmetrically hydrogen-bonded bis(β-acylvinyl)amines and their isomers

Authors:	J Dabrowski Z Swistun

Institution:	Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw 42, Poland

Abstract:	The effect of the size and branching of alkyl substituents R¹ and R² on the formation of all possible stereoisomers of bis(β-acylvinyl)amines, R¹COCR²CH]₂NH, has been investigated. IR and NMR data show that steric requirements of these substituents and resonance stabilization of the s-trans system are the main factors determining the position of the dynamic equilibrium.

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