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Grignard reagents, diarylamines

Nitrosoarenes give unstable diaryl hydroxylamines with aryl Grignard reagents, which can be reduced directly to diarylamines.312 Since arylmagnesium halides reduce nitroarenes to nitroso compounds, readily available nitroarenes and nitrohetarenes can be involved in this reaction allowing a simple preparation of polyfunctionalized diaryl- and heteroarylamines (Scheme 108).313... [Pg.70]

Organomagnesium compounds add to polycyclic aromatic hydrocarbons under forcing conditions, bnt with electron-withdrawing substituents the addition occurs more easily. Alkyl Grignard reagents add 1,4 and/or 1,6 to nitroaromatics, and the nitronate intermediate may be converted to a number of useful products (equation 45). Aryl Grignards yield hydroxylamines (by means of a 1,2 process), which can be reduced to diarylamines. ... [Pg.313]

D. Diarylamine from Reaction of Nitrobenzene with Grignard Reagents. . 461... [Pg.455]

Scheme 4.66 Synthesis of diarylamines using nitrosoarenes and Grignard reagents. Scheme 4.66 Synthesis of diarylamines using nitrosoarenes and Grignard reagents.
See other pages where Grignard reagents, diarylamines is mentioned: [Pg.302]    [Pg.576]    [Pg.577]    [Pg.86]    [Pg.70]    [Pg.461]    [Pg.461]    [Pg.190]    [Pg.63]    [Pg.190]    [Pg.276]    [Pg.277]    [Pg.279]    [Pg.149]    [Pg.150]    [Pg.151]    [Pg.152]   
See also in sourсe #XX -- [ Pg.461 ]



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