Add time:08/08/2019         Source:sciencedirect.com

A highly efficient two-step regio and stereoselective method for the synthesis of both cis-vinyltrimethylstannanes and cis-vinylpinacolboronates is described. This method takes advantage of the known lithium/tellurium exchange pathway providing a versatile alternative to known literature methods. The methodology presented demonstrates compatibility, for example, with substrates bearing oxygen functionality in comparison to previously reported methods of cis-selective hydrostannylation (i.e., ZrCl4).

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