810715 min using 345-nm light from the Bausch and Lomb monochromator. Remeasurement of the luminescence spectra showed a decrease in the fluorescence intensity but no phosphorescence.The glass was allowed to thaw and was then refrozen. Use of the phosphoroscope now showed the phosphorescence spectrum of in ethanol. The intensity could not be measured since a clear glass could not be obtained.Photolysis of l a at 77°K. A solution of l a in ethanol was prepared and its fluorescence spectrum measured as described above.Use of the phosphoroscope showed no phosphorescence from the solution. The solution, maintained at 77"K, was irradiated for 2a.12Abstract: 1 -Norbornylamine, 1-apocamphylamine, and 1-adamantylamine have been deaminated using the nitroso-and nitroamide approach. The reaction yields carbonium ions that are reactive enough to abstract chloride ions from solvents such as methylene chloride, probably uia chloronium ion species. The norbornyl ions have a much higher reactivity than the 1-adamantyl ions as shown by the higher ratio of solvent attack to reaction with the negatively charged counterion. Oxygen-1 8 tracer experiments are also reported. The mechanism of deamination is discussed based on these and other results.

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cis‐Polychloroprene was synthesized by chlorinolysis of 1,4‐poly‐2‐(tri‐n‐butyltin)‐1,3‐butadiene. The latter was obtained by free radical polymerization of 2‐(tri‐n‐butyltin)‐1,3‐butadiene. The structure of cis‐polychloroprene was established by ozonolysis, and by infrared and NMR spectroscopy.