Temporary chemoselectivity

The mild conditions and high chemoselectivity of the metathesis reaction ensures that a wide variety of temporary connection strategies are compatible, and it is envisaged that this strategy will find increasing use in the future. 

In 2011, by employing a triazolium catalyst, Zeitler and Connon found for the first time highly chemoselective cross acyloin condensation reactions between aliphatic and ortfto-substituted aromatic aldehydes, of which the ort/to-substituted group can serve as a temporary directing group to ensure... 

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