โ Scribed by Doz. Dr. J. Jaz; Lic. Sci. A. Gerbaux
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
We have prepared 1 -chloro-l-[15N]nitrosocyclohexane, an electrophillic aminating reagent useful for the stereoselective synthesis of a-[lsN]arnino acids. Treatment of potassium [15N]nitrate with PbO gave potassium [IsNInitrite, which was converted into the intermediate hydroxylamine disulfonate by
Synthesis of 9-Chloro-1,10-anthraquinone and Its Reactions with Amines. -Reaction of 1-hydroxy-9,10-anthraquinone (I) with PCl 5 affords 1-dichlorophosphoryloxy-9,9-dichloroanthrone (II) which on reaction with cyclohexylamine in benzene undergoes amination of the phosphoryloxy group to give compoun
To account for the formation of the pyrrole derivatives, we assume that, by analogy to the Polonovski reaction [3], the N-oxide is acetylated by the acetic anhydride at the oxygen. The intermediate (4), which cannot be isolated, loses a molecule of acetic acid with formation of a pyrroleninium catio