Activation of a carbonyl compound by halogen bonding?

Chemical Communications Pub Date: 2014-04-30 DOI: 10.1039/C4CC03124E

Abstract

Using a prototypical Diels–Alder reaction as benchmark, we show that dicationic halogen-bond donors are capable of activating a neutral organic substrate. By various comparison experiments, the action of traces of acid or of other structural features of the halogen-bond donor not related to halogen bonding are excluded with high certainty.

Graphical abstract: Activation of a carbonyl compound by halogen bonding
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