Reactions of 2, 4, 6-tri-t-butylnitrosobenzene (1) with alkylmagnesium halides afforded 6- alkyl-1-hydroxy-imino-2, 4, 6-tri-t-butyl-2, 4-cyclohexadienes (2), 4-alkyl-1-hydroxyimino-2, 4, 6-tri-t-butyl-2, 5-cyclohexadienes (3), and N-alkyl-2, 4, 6-tri-t-butylanilines (4) depending on the Grignard reagents used. The distribution of the reaction products indicated that the oximes were formed via an attack of the anionic species on the ortho-and the para- ...
