The preparation of W-nitroso compounds has usually been limited to the nitroeation reaction. In a recent communication IVC reported that when a methaiiolic solution of disodium-p-benzoquinone clioxime was treated with oxygen-free nitric oxide, two moles of the gas were absorbed to produce disodium-N, N'-dinitroso-p-phenylenedihydroxylaminc2 Structures Ia, b, c represent the tauto-
