ABSTRACT
Allylboration is an important carbon-carbon bond-forming reaction that has been extensively used in synthetic organic chemistry.1 Reaction of “allyl” boranes 1 with carbonyl compounds 2 is generally advantageous over other “allyl” metalations because of superior levels of stereoselectivity observed due to a rigid six-membered boracyclic transition state 3. Further, the allylboration reaction is highly versatile because of ™ve different points of substitution (a−e) theoretically possible on the “allyl” borane that could be stereoselectively transferred on to carbonyl compounds thus obtaining a wide variety of complex products (Figure 25.1).
