Synthesis of Multisubstituted Olefins through Regio- and Stereoselective Silylborylation of an Alkynylboronate/Chemoselective Cross-Coupling Sequences
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https://figshare.com/articles/dataset/Synthesis_of_Multisubstituted_Olefins_through_Regio_and_Stereoselective_Silylborylation_of_an_Alkynylboronate_Chemoselective_Cross_Coupling_Sequences/2398675
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A highly regio- and stereoselective silylborylation of an alkynylboronate is disclosed. PhMe2Si–Bpin undergoes a Pd(OAc)2/tOctNC-catalyzed syn-addition to the alkynylboronate to yield 1-phenyl-1-silyl-2,2-diborylethene with high regioselectivity. The product 1-phenyl-1-silyl-2,2-diborylethene is then chemoselectively arylated by Suzuki–Miyaura coupling to afford (Z)-1-silyl-2-borylstilbene derivatives. This approach is extended to the synthesis of a tetraarylated olefin with four different substituents.
创建时间：
2016-02-19
