Over the last two decades the preparation of pyrrole-based receptors for anion recognition has attracted considerable attention. In this regard porphyrins, phthalocyanines and expanded porphyrins have been used as strong and selective receptors while the combination of those with different techniques and materials can boost their applicability in different applications as chemosensors and extracting systems. Improvements in the field, including the synthesis of this kind of compounds, can contribute to the development of efficient, cheap, and easy-to-prepare anion receptors. Extensive efforts have been made to improve the affinity and selectivity of these compounds and the continuous expansion of related research makes this chemistry even more promising. In this review, we summarize the most recent developments in anion binding studies while outlining the strategies that may be used to synthesize and functionalize these type of macrocycles. © 2016 World Scientific Publishing Company.
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Thanks are due to FCT/MEC for the financial support to QOPNA (FCT UID/QUI/00062/2013) and CQE (FCT UID/QUI/0100/2013) research units, through national funds and where applicable co-financed by the FEDER, within the PT2020 Partnership Agreement. We further wish to thank the Seventh Framework Programme (FP7- People-2012-ITN) for funding the SO2S project (grant agreement no. 316975). Andreia A. S. Farinha is also grateful to King Abdullah University of Science and Technology (KAUST) for supporting her research.