RESULTS 4-Methyt-d-pentylamine. The reduction of krt-butyl hydroperoxide by 4-methyl-2- pentylamine gave, as expected'excellent conversions to tertbutyl alcohol and water and produced a substituted ketimine (I), N-(4-methyl-2-pentylidene)-4-methyl-2-pentylamine, as the major nitrogeneous product (see Table I). However, the yield of I was