The photochemical action of nitrosyl chloride on compounds of the type R1- C - R1 has proved to be of very limited application. Although isopropyl chloride gave beta-chloro-beta-nitroso propane, sec-butyl chloride gave not the desired beta-chloro-beta-nitroso butane but betagamma-di-chloro-beta-nitroso butane. Other compounds such as isopropyl bromide and betagamma-dichloro butane did not react. The possibility of using pinacolyl chloride has been discussed and has been ruled out owing to the inability of obtaining the substance readily and in its active form
