Lithiated Carbamates: Chiral Carbenoids for Iterative Homologation of Boranes and Boronic Esters

Take your pick: Either enantiomer of either diastereomer of substrates bearing adjacent stereogenic centers is accessible through reaction of an (R)- or (S)-lithiated carbamate with an (R)- or (S)-boronic ester (see scheme; pin=pinacolate, OCb=substituted carbamate). Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z702146_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.