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Chemoselective inhibition of the hydrogenolysis of the MPM protective group for phenolic hydroxy functions using a PdC-pyridine catalyst

โœ Scribed by Hironao Sajiki; Hiroko Kuno; Kosaku Hirota


Publisher
Elsevier Science
Year
1997
Tongue
French
Weight
186 KB
Volume
38
Category
Article
ISSN
0040-4039

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โœฆ Synopsis


A convenient method for the selective hydrogenation of phenolic benzyl ether, Cbz, benzyl ester, nitro and olefin functions distinguishing from the MPM (4-methoxybenzyl) protective group for the phenolic hydroxy groups was accomplished by the addition of pyridine to the PdlC-catalyzed reduction system.


๐Ÿ“œ SIMILAR VOLUMES


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The benzyl protecting group for hydroxy function was selectively removed by catalytic hydrogenolysis with Raney nickel in the presence of the MPM (4-methoxybenzyl) and DMPM (3,4-dimethoxybenzyl)protecting groups, and applied to the synthesis of some synthons to macrolide and polyether antibiotics.

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