Organosilicon compounds. XCII. The effect of structure of some organosilicon thiols on the rate of their addition to phenyl isocyanate

J Hetflejš, L Svoboda, M Jakoubkova…

Index: Hetflejs,J. et al. Collection of Czechoslovak Chemical Communications, 1973 , vol. 38, p. 717 - 726

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Citation Number: 6

Abstract

A kinetic study was made of the addition of alkylsilylsubstituted thiols (CH3hSi (CH2) nSH (n= 1-4) and siloxysilyl-substituted thiols [(CH3hSiOh-n (CH3) nSiCH2SH (n= 1-3) to phenyl isocyanate catalysed with triethylamine. It was found that the reaction is first order in the reactants and the catalyst. In harmony with the proposed mechanism, the reactivity of the trimethylsilyl-substituted thiols decreased with decreasing influence of the+ 1 effect of ...