摘要:
Palladium(II)-catalyzed carbon-carbon bond formation between allyl 2,3,4,6-tetra-O-acetyl-beta-(D)-glucopyranoside (3) and arylboronic acid congeners gave the corresponding cinnamyl 2,3,4,6-tetra-O-acetyl- beta-(D)-glucopyranosides (4a-m) in good yield. Among them, coupling products 4a-m were converted to not only the naturally occurring phenylpropenoid beta-(D)-glucopyranoside analogues (la-e) but also the unnaturally ones (If-m). (c) 2005 Elsevier Ltd. All rights reserved.