We report a convenient access to tertiary carbinamines bearing a gem-diaryl group by Cu-catalyzed aryl Grignard addition to
cyclic sulfamidate imines and sulfamide imines. The synthesis of hetero-functionalized 1,2-ethylene derivatives by ring-opening of the
resulting sulfamidates is also described.
Keywords: Copper triflate, gem-diaryl group, Grignard addition, sulfamidate, tertiary carbinamine.
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