Table 2.

Scope of Ni-Catalyzed Enantioselective Conjunctive Coupling^[a]

^[a]See text and Supporting Information details. Vinyllithium prepared from n-BuLi and tetravinyl stannane. Yields are of purified material and represent the average value for two experiments.

^[b]Vinyllithium prepared from n-BuLi and vinyl iodide.

^[c]Reaction conducted at room temperature.

^[d]Substrate was (4-iodophenyl)triethylsilyl acetylene, which undergoes desilylation during oxidation.

^[e]Product difficult to oxidize; isolated as the borane after silica gel chromatography.