Direct Synthesis of <i>B</i>-Allyl and <i>B</i>-Allenyldiisopinocampheylborane Reagents Using Allyl or Propargyl Halides and Indium Metal Under Barbier-Type Conditions
作者:Lacie C. Hirayama、Terra D. Haddad、Allen G. Oliver、Bakthan Singaram
DOI:10.1021/jo300260a
日期:2012.5.4
groups to aldehydes and ketonesusing B-chlorodiisopinocampheylborane (dDIP-Cl) and indium metal. Under Barbier-type conditions, indium metal was used to generate allyl- and allenylindium intermediates, and subsequent reaction with dDIP-Cl successfully promoted the transfer of these groups to boron forming the corresponding chiralboranereagents. The newly formed boranereagents were reacted with aldehydes