Table 5. Scope of Amine Electrophiles with 4-Phenyl-1-butenea.
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Isolated yields (average of two runs). 2 (1 mmol), hydroxyla-mine (1.2 mmol), Cu(OAc)2 (2 mol %), (±)-DTBM-SEGPHOS (2.2 mol %), DEMS (2 mmol), THF (0.5 M), 40 °C, up to 36 h.
Cu(OAc)2 (4 mol %), (±)-DTBM-SEGPHOS (4.4 mol %) were used.