Asymmetric dearomatization catalysed by chiral Brønsted acids via activation of ynamides

YQ Zhang, YB Chen, JR Liu, SQ Wu, XY Fan… - Nature Chemistry, 2021 - nature.com
Chiral Brønsted acid-catalysed asymmetric synthesis has received tremendous interest over
the past decades, and numerous efficient synthetic methods have been developed based on …

N-Triflylphosphoramides: highly acidic catalysts for asymmetric transformations

G Caballero-García, JM Goodman - Organic & Biomolecular Chemistry, 2021 - pubs.rsc.org
N-Triflylphosphoramides (NTPA), have become increasingly popular catalysts in the
development of enantioselective transformations as they are stronger Brønsted acids than …

Enantioselective organocatalysis and superacid activation: challenges and opportunities

B Michelet, A Martin‐Mingot… - … A European Journal, 2023 - Wiley Online Library
Since the pioneer reports of the groups of Akiyama and Terada on Brønsted acid
organocatalysis, this field never stopped growing with the development of ingenious …

Strong and confined acids catalyze asymmetric intramolecular hydroarylations of unactivated olefins with indoles

P Zhang, N Tsuji, J Ouyang, B List - Journal of the American …, 2021 - ACS Publications
In recent years, several organocatalytic asymmetric hydroarylations of activated, electron-
poor olefins with activated, electron-rich arenes have been described. In contrast, only a few …

A powerful chiral super brønsted C–H acid for asymmetric catalysis

B Peng, J Ma, J Guo, Y Gong, R Wang… - Journal of the …, 2022 - ACS Publications
A new type of chiral super Brønsted C–H acids, BINOL-derived phosphoryl bis
((trifluoromethyl) sulfonyl) methanes (BPTMs), were developed. As compared to widely …

Role of noncovalent interactions in inducing high enantioselectivity in an alcohol reductive deoxygenation reaction involving a planar carbocationic intermediate

S Ghosh, A Changotra, DA Petrone… - Journal of the …, 2023 - ACS Publications
The involvement of planar carbocation intermediates is generally considered undesirable in
asymmetric catalysis due to the difficulty in gaining facial control and their intrinsic stability …

Discrimination of the Enantiotopic Faces of Structurally Unbiased Carbenium Ions Employing a Cyclohexadiene‐Based Chiral Hydride Source

B Wolff, ZW Qu, S Grimme… - Angewandte Chemie …, 2023 - Wiley Online Library
An enantioselective reduction of simple carbenium ions with cyclohexadienes containing a
hydridic C− H bond at an asymmetrically substituted carbon atom is disclosed. The net …

Catalytic Enantioselective Synthesis of 2, 3′-Bis (indolyl) methanes Bearing All-Carbon Quaternary Stereocenters via 2-Indole Imine Methides

Z Han, W Wang, H Zhuang, J Wang, C Wang… - Organic …, 2023 - ACS Publications
An organocatalytic enantioselective formal hydroarylation of 2-vinyl indoles for the
preparation of enantioenriched 2, 3′-bis (indolyl) methanes bearing an all-carbon …

B(C6F5)3/Chiral Phosphoric Acid Catalyzed Ketimine–Ene Reaction of 2‐Aryl‐3H‐indol‐3‐ones and α‐Methylstyrenes

QX Zhang, Y Li, J Wang, C Yang, CJ Liu… - Angewandte Chemie …, 2020 - Wiley Online Library
The enantioselective ketimine–ene reaction is one of the most challenging stereocontrolled
reaction types in organic synthesis. In this work, catalytic enantioselective ketimine–ene …

Enantioselective Construction of Consecutive Tetrasubstituted Stereogenic Centers by Reaction of α-Substituted β-Nitroacrylates with Oxazol-5-(4H)-ones Catalyzed …

K Fujita, M Hattori, T Takehara, T Suzuki… - Organic …, 2023 - ACS Publications
The enantioselective reaction of α-substituted β-nitroacrylates with oxazol-5-(4 H)-ones
(oxazolones) to construct consecutive tetrasubstituted stereogenic centers was …