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Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
Molecular Rearrangement of an Aza-Scorpiand Macrocycle Induced by pH: A Computational Study
Jesus Vicente De Julián-Ortiz1,2, Begoña Verdejo3, Víctor Polo4
1ProtoQSAR SL, Parc Científic, 46980 Paterna, València, Spain. jejuor@uv.es.
Abstract:
Rearrangements and their control are a hot topic in supramolecular chemistry due to the possibilities that these phenomena open in the design of synthetic receptors and molecular machines. Macrocycle aza-scorpiands constitute an interesting system that can reorganize their spatial structure depending on pH variations or the presence of metal cations. In this study, the relative stabilities of these conformations were predicted computationally by semi-empirical and density functional theory approximations, and the reorganization from closed to open conformations was simulated by using the Monte Carlo multiple minimum method.
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