Article citationsMore>>

A. ?l?czka and J. Lubczak, “Hydroxyalkylation of Barbituric Acid. II. Synthesis of Polyetherols with Pyrimidine Ring,” Journal of Applied Polymer Science, Vol. 106, No. 6, 2007, pp. 4067-1074. doi:10.1002/app.26742

has been cited by the following article:

• TITLE: Hydroxyalkylation of Cyclic Imides with Oxiranes. Part II. The Mechanism of Reaction in Presence of Triethylamine

  AUTHORS: Jacek Lubczak

  KEYWORDS: Imides; Oxiranes; Mechanism; Kinetics; Non-Kinetics Evidences

  JOURNAL NAME: Open Journal of Physical Chemistry, Vol.2 No.2, May 22, 2012

  ABSTRACT: The mechanism of reaction of cyclic monoimides with oxiranes was established based upon kinetic studies and product analysis. It has been established that the reaction proceeds through initial formation of an adduct of imide and triethylamine. The crucial bond in adduct has ionic character; in non-aqueous solvents it is present as ion pair, while in water the adduct dissociate and free ions are present. The adduct enables the proton transfer from imide to oxirane. The rate determining step is reaction of imide and this adduct. Different values of entropy of transition states obtained from thermodynamic calculations suggest slightly different structure of transition state of rate determining step.