Chiral phosphoric acid catalysis: from numbers to insights

R Maji, SC Mallojjala, SE Wheeler - Chemical Society Reviews, 2018 - pubs.rsc.org
Chiral phosphoric acids (CPAs) have emerged as powerful organocatalysts for asymmetric
reactions, and applications of computational quantum chemistry have revealed important …

Addition and correction to complete field guide to asymmetric BINOL-phosphate derived Brønsted acid and metal catalysis: History and classification by mode of …

D Parmar, E Sugiono, S Raja, M Rueping - Chemical Reviews, 2017 - ACS Publications
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 …

Electrostatic Interactions in Asymmetric Organocatalysis

R Maji, SC Mallojjala, SE Wheeler - Accounts of Chemical …, 2023 - ACS Publications
Conspectus Electrostatic interactions are ubiquitous in catalytic systems and can be decisive
in determining the reactivity and stereoselectivity. However, difficulties quantifying the role of …

The activation of carboxylic acids via self-assembly asymmetric organocatalysis: a combined experimental and computational investigation

MR Monaco, D Fazzi, N Tsuji, M Leutzsch… - Journal of the …, 2016 - ACS Publications
The heterodimerizing self-assembly between a phosphoric acid catalyst and a carboxylic
acid has recently been established as a new activation mode in Brønsted acid catalysis. In …

Electrostatic Basis for Enantioselective Brønsted-Acid-Catalyzed Asymmetric Ring Openings of meso-Epoxides

TJ Seguin, SE Wheeler - ACS Catalysis, 2016 - ACS Publications
Computational studies of three chiral phosphoric-acid-catalyzed asymmetric ring-openings
of meso-epoxides show that the enantioselectivity of these reactions stems from favorable …

Origins of selectivity and general model for chiral phosphoric acid-catalyzed oxetane desymmetrizations

PA Champagne, KN Houk - Journal of the American Chemical …, 2016 - ACS Publications
The origins of the high enantioselectivity of chiral phosphoric acid-catalyzed oxetane
desymmetrizations were investigated by density functional theory (DFT) calculations …

Activation mode and origin of selectivity in chiral phosphoric acid-catalyzed oxacycle formation by intramolecular oxetane desymmetrizations

R Maji, PA Champagne, KN Houk, SE Wheeler - ACS Catalysis, 2017 - ACS Publications
Density functional theory methods were used to elucidate the activation mode and origin of
stereoselectivity in chiral phosphoric acid-catalyzed intramolecular oxetane …

Non-classical C–H··· X hydrogen bonding and its role in asymmetric organocatalysis

MJ Ajitha, KW Huang - Synthesis, 2016 - thieme-connect.com
Non-classical hydrogen bonds (NCHBs) have attracted significant interest in the past
decade particularly because of their important role in asymmetric catalytic systems. These …

Competing noncovalent interactions control the stereoselectivity of chiral phosphoric acid catalyzed ring openings of 3-substituted oxetanes

TJ Seguin, SE Wheeler - ACS Catalysis, 2016 - ACS Publications
The noncovalent interactions responsible for enantioselectivity in organocatalytic oxetane
ring openings were quantified using density functional theory (DFT) computations. Data …

Theoretical insight into phosphoric acid-catalyzed asymmetric conjugate addition of indolizines to α, β-unsaturated ketones

H Chen, L Zhu, K Zhong, X Yue, LB Qu, R Bai… - Chinese Chemical …, 2018 - Elsevier
Phosphoric acid catalysis is a powerful tool for the construction of new Csingle bondC bonds
because of its unique LUMO-lowering activity. Theoretical calculations were employed to …