The effect of the β-phenyl group on the decomposition of N-sec-alkyl-N-nitrosoacetamide was found to be more pronounced when the alkyl group was cyclohexyl than when it was isopropyl, and the heat of activation of N-cyclohexyl-N-nitrosoacetamide was smaller than that of N-isopropyl-N-nitrosoacetamide. Hence the second order hyperconjugation was suggested as more probable for the cycloalkyl group. This hypothesis was supported by a ...
