Tebbe reagent allyl vinyl ethers

Recently, Claisen rearrangement of allyl-vinyl ether prepared from glycal ester with Tebbe reagent was reported [91]. In contrast to the Ireland-Claisen rearrangement, in principle, a non-enolizable ester can be employed (O Scheme 63). This method was applied for the synthesis of C-disaccharide. 

In particular, Paquette has reported that the treatment of esters with the Tebbe reagent and subsequent thermal rearrangement of the resulting allyl vinyl ethers gave carbonyl compounds. 

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