Configurationally well-defined cycloalkylzinc compounds (1) were prepared for the first time olefins by hydroboration and subsequent boron–zinc exchange with iPr2Zn. The resulting secondary alkylzinc reagents are configurationally stable and can be allylated or alkynylated stereoselectively in the presence of CuCN · 2LiCl with retention of configuration (see the example below).
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Micouin et al. (1997) studied this question.
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