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Mild uncatalyzed hydroamination of an electrophilic alkyne, ethynylcobalticinium
Wang, Y.; Rapakousiou, A.; Latouche, C.; Daran, JC ; Singh, Anu ; Ledoux-Rak, I.; Ruiz, J ; Saillard, JY; Astruc, D, Chemical Communications 49, 5862-5864 (2013)
Primary and secondary amines react with ethynylcobalticinium under mild conditions in the absence of a catalyst and an additional solvent to give quantitative yields of dark-red microcrystalline cobalticinium trans-enamines that show a remarkable push–pull electronic structure.
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