Kinetics of the cyclotrimerization and cocyclotrimerization of isocyanates catalyzed with alkali metals alkoxides

Z Bukač, A Nechaiev, J Šebenda

Index: Bukac, Zbynek; Nechaiev, Alexandr; Sebenda, Jan Collection of Czechoslovak Chemical Communications, 1982 , vol. 47, # 8 p. 2219 - 2226

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Abstract

Abstract For the rate of cyclotrimerization vt of phenyl isocyanate (I) in tetrahydrofuran catalyzed with Li, Na or K tert-butoxides (A) at 30 C, the coefficients k, a, b of the empirical relation vt= k [I] a [A] 0 b were determined. The same coefficients were also determined for the cyclotrimerization of ethyl isocyanate with lithium tert-butoxide as the catalyst. The composition of the products of cocyclotrimerization of ethyl and butyl isocyanate ...