Abstract

The following derivatives of benzyl β- d-arabinopyranoside are described: exo-3,4- O-benzylidene ( 2), endo-3,4- O-benzylidene ( 3), and the 2-benzyl ether derivatives ( 4 and 5) of 2 and 3. Hydrogenolysis (LiAlH 4-AlCl 3) of the exo-isomers ( 2 and 4) gave mainly 4-hydroxy-3- O-benzyl derivatives ( 6 and 11), whereas the endo-isomers ( 3 and 5) gave mainly 3-hydroxy-4- O-benzyl derivatives ( 7 and 12). Acid hydrolysis of 4 and 5 yielded the 2- O-benzyl derivative ( 10).

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