Under CO atmosphere and in the presence of Pd-2(dba)(3) and Ph(3)As a suitably protected 1-stannylglucal derivative could be carbonylated and coupled to 5-bromo-7-oxabicyclo[2.2.1]hept-5-en-2-yl derivatives. The carbonylative Stille coupling was also successful between 1-iodoglucals and tributyl(vinyl)stannane or tributyl(fur-2-yl)stannane. A cross-conjugated dienone was also obtained through coupling of a 1-stannylglucal with a 1-iodoglucal derivative. (C) 1997, Published by Elsevier Science Ltd. All rights reserved.
Xile Hu, Runze Mao, Jonathan Balon
Xile Hu, Zhikun Zhang, Renyi Shi
Matthew Wodrich, Alberto Fabrizio, Benjamin André René Meyer, Boodsarin Sawatlon