EventsThe 4th International Electronic Conference on Synthetic Organic Chemistry
Event submissions
Published
with-doi10.3390/ecsoc-4-01833
This submission belongs to the session a. General Organic Synthesis of the event The 4th International Electronic Conference on Synthetic Organic Chemistry
Published date
11 Sep, 2000
Citation
Adrian A. Caraculacu, Sergiu Coseri, Synergetic effect of urethane formation, in Proceedings of The 4th International Electronic Conference on Synthetic Organic Chemistry, 1 November–30 November 2000, MDPI: Basel, Switzerland, doi: 10.3390/ecsoc-4-01833
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Synergetic effect of urethane formation

Sergiu Coseri 1
Adrian A. Caraculacu 1
1. Institute of macromolecular chemistry “P.Poni”, Gr. Ghica Voda Alley, 41 A, 6600, Iasi, Fax. 040-32-211299, Romania
Abstract
The kinetic of reaction between isocyanates and alcohols is determined in a great extent by the presence in the reaction system of substances able to inhibit or to activating reaction rate of urethane formation. The most important effect is produced by compounds that appear as reaction products (urethanes, urea). By using a HPLC (High Pressure Liquid Chromatography) method to follow the evolution of reaction composition in usual condition of urethane synthesis, as like amine actions, by introduce certain amounts of amide or urea in the reaction system, this catalysed reaction rate of urethane formation. The same effect the urethane addition present also, but in this case the urethane hydrogen atom presence is necessary.
Keywords
n/a
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