[Pd 2 (dba) 3 ] in the presence of trifurylphosphane catalyzes the stepwise reaction of CH 2 (ZnI) 2 with different electrophiles [Eq. (a)]. The homologous Zn 2 compound CH 3 CH(ZnI) 2 reacts in the first step analogously with cinnamyl chloride; however, stoichiometric amounts of CuCN/LiCN are required for the coupling with allyl bromide in the second step equation image
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Utimoto et al. (1997) studied this question.
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