Development of Highly Chemoselective Bulky Zincate Complex,<i>t</i>Bu<sub>4</sub>ZnLi<sub>2</sub>: Design, Structure, and Practical Applications in Small-/Macromolecular Synthesis
We present full details of the unique reactivities of the newly developed dianion-type bulky zincate, dilithium tetra-tert-butylzincate (tBu(4)ZnLi(2)). With this reagent, halogen-zinc exchange reaction of variously functionalized haloaromatics and anionic polymerization of N-isopropylacrylamide (NIPAm)/styrene with excellent chemoselectivity were realized. Halogen-zinc exchange reaction followed by