Halides as versatile anions in asymmetric anion-binding organocatalysis
Keyword(s):
This review intends to provide an overview on the role of halide anions in the development of the research area of asymmetric anion-binding organocatalysis. Key early elucidation studies with chloride as counter-anion confirmed this type of alternative activation, which was then exploited in several processes and contributed to the advance and consolidation of anion-binding catalysis as a field. Thus, the use of the halide in the catalyst–anion complex as both a mere counter-anion spectator or an active nucleophile has been depicted, along with the new trends toward additional noncovalent contacts within the HB-donor catalyst and supramolecular interactions to both the anion and the cationic reactive species.
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2019 ◽
Vol 35
(11)
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pp. 1853-1861
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Keyword(s):
2021 ◽
Vol ahead-of-print
(ahead-of-print)
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