(Z)—α—Selanyl Alkenyl grignard Reagents as Convenient Precursors for Stereose

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(Z)-α-Selanyl alkenyl Grignard reagents 2 were prepared conveniently by treatment of α-bromovinylselenides 1 with magnesium filings in THE Intermediates 2 were reacted with alkyl iodides in the presence of Cul or Pd(PPh3)4 to afford(Z)-1,2-disubstituted v
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