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The catalytic application of chiral phosphoric acids (CPAs) from 2004 to date represents a true milestone for asymmetric organocatalysis. However, not only the free acids can be conveniently employed in numerous different asymmetric synthetic methodologies, thus being strictly compliant to the concept of “organocatalysis”, but also their metal salts. This review focuses on asymmetric reactions in which the catalyst is a chiral alkali or alkaline‐earth metal phosphate.
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Cocco et al. (2024) studied this question.
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