Synthesis of Carbasugar <i>C</i>-1 Phosphates via Pd-Catalyzed Cyclopropanol Ring Opening
作者:Mingde Shan、George A. O’Doherty
DOI:10.1021/ol801106r
日期:2008.8.21
routes rely upon a Simmons-Smith cyclopropanation and diastereospecific ring opening of cyclopropanol under Pd/C hydrogenation condition to set up the alpha-methyl ketone. A sequence of diastereoselective reduction, dihydroxylation, and/or Myers' reductive 1,3-rearrangement were used to install the desired stereochemistry.
Synthesis of Cyclitols via Cyclopropanation/Palladium-Catalyzed Ring Opening
作者:George O’Doherty、Mingde Shan
DOI:10.1055/s-2008-1067262
日期:2008.10
syntheses of three cyclitols, 5a-carba-α-D-rhamnopyranose, 5a-carba-β-D-digitoxopyranose, and 5a-carba-α-L-rhamnopyranose, have been achieved. The routes rely upon a Simmons-Smith cyclopropanation and diastereospecific ringopening of cyclopropanol under Pd/C hydrogenation conditions to prepare the α-methyl ketone. A sequence of diastereoselective reduction, dihydroxylation, and/or Myers' reductive 1,3-rearrangement