The hydroboration of silylacetylenes. The" silyl-Markovnikov" hydroboration route to pure (Z)-1-(2-borylvinyl) silanes and. beta.-keto silanes

JA Soderquist, JC Colberg…

Index: Soderquist, John A.; Colberg, Juan C.; Valle, Luis Del Journal of the American Chemical Society, 1989 , vol. 111, # 13 p. 4873 - 4878

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Citation Number: 67

Abstract

Abstract: The regiochemistry and stoichiometry of the hydroboration of simple I- silylacetylenes with 9-borabicyclo [3.3. I Inonane (9-BBN) was examined in detail.(Trimethylsily1) acetylene (IC) results in only@-mono-and dihydroboration products, behavior common to nonsilylated terminal acetylenes. It is less reactive than its alkyl counterparts toward 9-BBN. It was also demonstrated that (1-trimethylsilyl) alkynes form (a ...