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A stereoselective synthesis of the (+)-decarestrictine L has been described following our own developed iodine-catalyzed tandem isomerization followed by C–O and C–C bond formation reaction for the construction of trans-2,6-disubstituted dihydropyran as the key step. Other important reactions used for this synthesis are 5-exo-trig-iodolactonization, Mitsunobu inversion, and Wacker’s oxidation. The...
A stereoselective synthesis of the C21–C29 fragment of (+)-Sorangicin A has been described following our recently developed iodine-catalyzed tandem isomerization followed by C–O and C–C bond formation for the construction of trans-2,6-disubstituted dihydropyran as the key step. In this Letter, the problem of installing the C25 asymmetric center has been sorted out by utilizing an iodolactonization...
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