Results 181 to 190 of about 14,256 (222)

Structure‐Guided Engineering of a Promiscuous O‐Methyltransferase for a SAM Regeneration Biocatalysis Platform of Methylated Pharmaceuticals

Advanced Science, Volume 13, Issue 13, 3 March 2026.
A substrate promiscuous and regioselective O‐methyltransferase, SmOMT, is functionally and structurally characterized. A double mutant, SmOMTE152A/I306A, exhibited enhanced catalytic activity. By coupling this mutant with a mutant halide methyltransferase, AtHMTV140T, for SAM regeneration, a superior artificial fusion enzyme, AtHMTV140T‐L95‐SmOMTE152A ...
Xiran Xiong, Jun Song, Shihan Li, Lu Jin, Qi He, Baohui Zhang, Yan Cao, Shanyong Yi, Yanfang Yang, Xiang Li, Juan Li, Wei Huang   +11 more
wiley   +1 more source

Cu(II)-Catalyzed Hydrofunctionalization of Unactivated Alkynes via π-Lewis Acid Activation. [PDF]

J Am Chem Soc
Sun J, Tugwell TH, Madhusudhanan MC, Xu L, Yang S, Liu P, Engle KM.   +6 more
europepmc   +1 more source

Stereodivergent Access to Aliphatic Nitro Compounds Bearing Multi‐Contiguous Stereocenters via Sequential Catalysis

Advanced Science, Volume 13, Issue 14, 9 March 2026.
Herein, we report a highly efficient synthesis of aliphatic nitro compounds bearing multi‐contiguous stereocenters in good yields with excellent diastereo‐ and enantio‐selectivities by combining copper‐catalyzed asymmetric conjugate addition of dialkylzinc reagents to nitroalkenes with iridium‐catalyzed asymmetric allylic substitution reaction ...
Jia‐Hao Xie, Yi‐Ming Hou, Zhi‐Jie Wu, Chao Zheng, Shu‐Li You   +4 more
wiley   +1 more source

Recent Developments in Azomethine Ylide-Initiated Double Cycloadditions. [PDF]

Molecules
Zhou T, Zhang X, Sheng YJ, Zhan D, Zhang W.   +4 more
europepmc   +1 more source

Stereoselective Organocatalysts

Focus on Catalysts, 2014
openaire   +1 more source

Hybridization of Homogeneous and Heterogeneous Catalysis to Develop a Novel Biocatalyst via Immobilization of Lipase on Surface Modified Mesoporous Silica Towards Biodiesel Synthesis Application

Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
The 3‐(methacryloyloxy)propyltrimethoxysilane surface functionalized SBA‐15 (MP‐SBA‐15) is used for the first time as a lipase carrier. The immobilized CAL‐B exhibits high thermal stability and superior catalytic activity. CAL‐B/SBA‐15 suggests that optimum hydrophobicity gives better catalytic activity.
Murugappan N., Ayumi Sato, Jiachen Ge, Arisa Yamada, Makoto Onaka, Yuki Nakamura, Masaru Ogura   +6 more
wiley   +1 more source

A General Approach to Stereoregular Pseudo-Polysaccharides: Cationic Ring-Opening Polymerization of Monosaccharide Cyclic Thionocarbonates. [PDF]

J Am Chem Soc
Jiang NC, Deng Y, Fan J, Loffredo M, Zhang M, Easton C, Grinstaff MW, Niu J.   +7 more
europepmc   +1 more source

Dual-Mode Thio-MacMillan Organocatalysts: Stereoselective Diels-Alder Reactions or Sacrificial Self-Cyclization to N-Bridged Bicyclic Lactams. [PDF]

Chemistry
Ebeling MSR, Parziale LV, Sachsenhauser M, Seifert CJB, Kurrle NJ, Trapp O.   +5 more
europepmc   +1 more source

Palladium-catalyzed asymmetric migratory diarylation of unactivated directing-group-free internal alkenes. [PDF]

Nat Commun
Fan L, Xi Y, Gu H, Huang W, Zhu WH, Qu J, Chen Y.   +6 more
europepmc   +1 more source

Total synthesis of natural products based on hydrogenation of aromatic rings. [PDF]

Beilstein J Org Chem
Wu H, Qi X.
europepmc   +1 more source