Vitamin B6-Based Biomimetic Asymmetric Catalysis

X Xiao, B Zhao - Accounts of Chemical Research, 2023 - ACS Publications
Conspectus One of the fundamental goals of chemists is to develop highly efficient methods
for producing optically active compounds, given their wide range of applications in …

Biomimetic asymmetric catalysis

X Xiao, K Xu, ZH Gao, ZH Zhu, C Ye, B Zhao… - Science China …, 2023 - Springer
Enzymes are the core for biological transformations in nature. Their structures and functions
have drawn enormous attention from biologists as well as chemists since last century. The …

Catalytic asymmetric α C(sp3)–H addition of benzylamines to aldehydes

C Hou, B Peng, S Ye, Z Yin, J Cao, X Xiao, B Zhao - Nature Catalysis, 2022 - nature.com
Functionalization of inert C–H bonds has received tremendous attention due to the inherent
atom economy and efficiency of the transformations of the starting materials. As compared to …

[HTML][HTML] Design of an HPPD fluorescent probe and visualization of plant responses to abiotic stress

X Zeng, Y Huang, J Dong, X Ma, JX Nan, W Chen… - Advanced …, 2022 - Elsevier
The upregulation of 4-hydroxyphenylpyruvate dioxygenase (HPPD) can protect plants from
adverse abiotic stress. Therefore, studying the changes of HPPD under abiotic stress is …

Prebiotic synthesis of α-amino acids and orotate from α-ketoacids potentiates transition to extant metabolic pathways

S Pulletikurti, M Yadav, G Springsteen… - Nature Chemistry, 2022 - nature.com
The Strecker reaction of aldehydes is the pre-eminent pathway to explain the prebiotic
origins of α-amino acids. However, biology employs transamination of α-ketoacids to …

Asymmetric α‐allylation of glycinate with switched chemoselectivity enabled by customized bifunctional pyridoxal catalysts

J Ma, B Gao, G Song, R Zhang, Q Wang… - Angewandte …, 2022 - Wiley Online Library
Owing to the strong nucleophilicity of the NH2 group, free‐NH2 glycinates react with MBH
acetates to usually deliver N‐allylated products even in the absence of catalysts. Without …

Direct Asymmetric α‐C− H Addition of N‐unprotected Propargylic Amines to Trifluoromethyl Ketones by Carbonyl Catalysis

P Ji, X Liu, J Xu, X Zhang, J Guo… - Angewandte Chemie …, 2022 - Wiley Online Library
Direct asymmetric functionalization of the inert α C− H bonds of N‐unprotected propargylic
amines is a big challenge in organic chemistry, due to the low acidity (pKa≈ 42.6) of the α …

Palladium-catalyzed tandem Heck/carbonylation/aminocarbonylation en route to chiral heterocyclic α-ketoamides

H Hu, T Yu, S Cheng, J Li, C Gan, S Luo… - Organic Chemistry …, 2022 - pubs.rsc.org
An unprecedented tandem carbonylation/aminocarbonylation triggered by palladium-
catalyzed enantioselective Heck-type exocyclopalladation delivering chiral heterocyclic α …

Highly Enantioselective Synthesis of N‐Unprotected Unnatural α‐Amino Acid Derivatives by Ruthenium‐Catalyzed Direct Asymmetric Reductive Amination

L Hu, YZ Wang, L Xu, Q Yin… - Angewandte Chemie …, 2022 - Wiley Online Library
An unprecedented highly enantioselective Ru‐catalyzed direct asymmetric reductive
amination of α‐keto amides with ammonium salts has been disclosed, efficiently offering …

Going full circle with organocatalysis and biocatalysis: the latent potential of cofactor mimics in asymmetric synthesis

J Murray, DRW Hodgson… - The Journal of Organic …, 2023 - ACS Publications
Many enzymes work in tandem with small molecule cofactors, which have inspired
organocatalyst designs. Chemical modification of cofactor scaffolds has increased …