Svetoslav Bratovanov

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The synthesis of the C18-C31 subunit of orevactaene (1) in an enantioselective and convergent manner is reported. Four chiral centers in the structure (i.e., carbons 23, 25, 32, and 33) have unknown configuration; thus, a modular approach has been devised to link the two stereocenter-containing ends of the structure together via a trisubstituted olefin(More)
[reaction: see text] A new method for the formation of C-glycosides has been developed employing a cationic rhodium(I)-catalyzed 1,4-addition of arylboronic acids to enones derived from glycals. The reaction is stereoselective for the alpha-anomer and is highly dependent on the nature of the rhodium catalyst.
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