C-glycosides and C-disaccharide precursors through carbonylative Stille coupling reactions

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.


Published in:
Tetrahedron Letters, 38, 4, 543-546
Year:
1997
ISSN:
0040-4039
Keywords:
Note:
Univ lausanne,chim sect,bch,ch-1015 lausanne,switzerland.
Laboratories:




 Record created 2005-11-09, last modified 2018-01-27


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