Figure 73: The proposed catalyst/substrate interaction shown in Figure 73 corresponds to
the related sulfoxidation catalyzed by chiral phosphoric acid PA 5 (ref 133). Please note that …

Chiral phosphoric acids (CPAs) have been used as efficient organocatalysts since the first
examples were reported 18 years ago by Akiyama and Terada. Although they were …

Heterogeneous Brønsted acid catalysts featuring high porosity, crystallinity, and stability
have been of great interest for both fundamental studies and practical applications, but …

Knitting rigid aromatic building blocks using external crosslinkers has been developed into
an effective strategy for the synthesis of porous polymers in recent years. Here, we report the …

This review summarizes the very recent advances in asymmetric reactions catalyzed by
chiral phosphoric acids (CPAs), a family of versatile catalysts that catalyze a broad range of …

Stereoselective synthesis of acyclic α,α-disubstituted α-amino acids derivatives from amino acids
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Choosing the optimal catalyst for a new transformation is challenging because the ideal
molecular requirements of the catalyst for one reaction do not always simply translate to …

An enantioselective intermolecular addition reaction of azlactones, as carbon nucleophiles,
with styrene derivatives, as simple olefins, was demonstrated using a newly developed …

The synthesis of 7-membered carbocyclic β-fluoroamines is accomplished by a combination
of the enantioselective aza-Henry reaction of aliphatic N-Boc imines and ring-closing …

Asymmetric alkynylation of thiazolones and azlactones with alkynylbenziodoxolones as the
electrophilic alkyne source catalyzed by thiourea phosphonium salt is described. By using …