Acid catalyzed rearrangement of vinyl and ketene acetals
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Add time:08/02/2019 Source:sciencedirect.com
Substituted vinyl and ketene acetals undergo smooth oxygen-to-carbon rearrangement with a catalytic amount of TMSOTf to afford chain-extended ketones or esters, respectively. The developed procedure has been applied to the stereoselective synthesis of C-glycosides from the corresponding anomeric vinyl ethers.
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