Abstract
Cryptands can be seen as the smallest three-dimensional molecular cages still capable of accommodating (ionic) guests. We have recently realized the first dynamic covalent self-assembly of a monometallic cryptate, whose template synthesis and unique structure crucially rest on orthoester bridgeheads [Nat. Commun. 2015, 6, 7129]. In this Synpacts article, I discuss selected aspects that led to this discovery and I attempt to put the study into the context of recent trends in the self-assembly of larger molecular cages. 1 Introduction 2 Dynamic Covalent Self-Assembly of Orthoester Cryptates 3 From Covalent to Metallosupramolecular to Dynamic Covalent Synthesis 4 Orthoester Cryptates as Tiny Self-Assembled Cages 5 Conclusions
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