Structural and electronic effects on the reactivity of carbamoylsilanes towards acrylonitrile addition
摘要:
The effect of substituents on Si and N on t(1/2) values in the addition of carbamoylsilanes to acrylonitrile was explored. After examination of steric and structural parameters, the best correlation was found to be that rates increased with a decrease in the ionization potential of the carbamoylsilane. (c) 2006 Elsevier B.V. All rights reserved.
Various N,N-disubstituted carbamoyltrimethylsilanes can be prepared by the addition of LDA to a mixture of TMSCl and the appropriate formamide in THF at -78degreesC. Slow (syringe pump) addition of LDA is crucial to obtaining good yields.