Stereoselective Synthesis of Alcohols, XX. - Diastereoselective Addition of γ-Alkoxyallylboronates to Aldehydes
Both the (Z)- and (E)-γ-alkoxysubstituted allylboronates 1 and 3 have been prepared.They add to aldehydes with a diastereoselectivity generally exceeding 90percent to give the syn-(2) and anti-diol derivatives 4, respectively.The structure of one of these adducts has been established by conversion into exo-brevicomin (26).
Hoffmann, Reinhard W.,Kemper, Bruno,Metternich, Rainer,Lehmeier, Thomas
p. 2246 - 2260
(2007/10/02)
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