Preparation and reaction of new dialkylzincs obtained by a boron-zinc transmetalation.
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Various aliphatic organoboron derivatives were transmetalated to the corresponding dialkylzincs using diethyl- or dimethyl-zinc. This allows an access to zinc reagents not readily available by standard methods. Didecylzinc obtained by this methods adds with good enantioselectivity (83 % ee) to PhCHO in the presence of catalytic amounts of (1R, 2R)-1,2-bis-(trifluorosulfonamido)cyclohexane. © 1993.
author list (cited authors)
Langer, F., Waas, J., & Knochel, P.