Results 41 to 50 of about 18,220 (243)

Synthesis of Six Natural Products Enabled by Selective Hydroxylation of Orcinaldehyde‐Like Substrates With an Enzyme Library

Angewandte Chemie, EarlyView.
Achieving selective (sp3)C–H hydroxylation can streamline the synthesis of complex organic molecules. Biocatalysis presents an opportunity to realize this transformation, however, identifying useful enzymes that enable synthetic strategies can be a challenge due to limitations in enzyme substrate scope.
Gonzalo J. Villegas Rodríguez, Evan O. Romero, Jonathan C. Perkins, Diego N. Rojas, Maximilian S. Hrigora, Alison R. H. Narayan   +5 more
wiley   +2 more sources

Copper-catalyzed and Y(OTf)3-promoted deoxyaminative alkylation of imidazo[1,2-a] pyridines with benzyl alcohols and amines [PDF]

RSC Advances
A straightforward and efficient Cu(OAc)2/TEMPO-catalyzed and then Y(OTf)3-promoted protocol for deoxyaminative alkylation of imidazo[1,2-a]pyridines with benzyl alcohols and amines has been developed.
Ruoyin Hu, Juanjuan Gao, Tengwen Chen, Lisheng Zheng, Jingwei Guo, Yifan Cao, Renshi Luo, Zhaowen Liu   +7 more
doaj   +1 more source

Untangling Inositol (Pyro)Phosphate Biology Through Emerging Technologies

Advanced Science, EarlyView.
Inositol (pyro)phosphates represent a vital class of intracellular messengers that govern multiple biological processes. The last decade has experienced a surge of interest in the functions of this class of signaling molecules, primarily due to the introduction of several innovative analytical technologies.
Adolfo Saiardi, Mengsi Lu, Yue Zhang, Anuj Shukla, An‐Li Andrea Ko, Henning J. Jessen   +5 more
wiley   +1 more source

Flavin Catalysts in Organic Synthesis

Angewandte Chemie, EarlyView.
Flavins and their congeners are potent catalysts for organic synthesis inspired by enzymatic transformations. In addition to catalysis in the flavin ground state via covalent intermediates, the excited singlet and triplet states unlock applications including photooxidation, photoreduction, and energy transfer via sensitization.
Jan Freudenberg, Golo Storch
wiley   +2 more sources

Nanomaterials functionalized acidic ionic organosilica as highly active catalyst in the selective synthesis of benzimidazole via dehydrogenative coupling of diamines and alcohols

Scientific Reports
An acidic tungstate-based zwitterionic organosilica drived simple self-condensation of tungstic acid and zwitterionic organosilane (PMO-IL-WO4 2−), was remarkably demonstrated to be highly efficient and environmentally friendly catalyst for directly ...
Fatemeh Rajabi, Afsaneh Feiz
doaj   +1 more source

Highly efficient palladacycle-catalyzed carboxylation of benzyl alcohols

Green Synthesis and Catalysis
A general and practical carboxylation of benzyl alcohols using the air- and moisture-stable Herrmann-Beller palladacycle was developed. With this novel methodology, numerous carboxylated products were constructed and various functional groups were ...
Shaoke Zhang, Yan Zong, Yu Qian, Jishu Zhang, Gen-Qiang Chen, Xumu Zhang   +5 more
doaj   +1 more source

Sticker Valence Governs Chain Collapse and Liquid‐Liquid Phase Separation in Peptide‐Inspired Associative Polymers

Advanced Science, EarlyView.
Peptide‐inspired associative polymers with arginine‐like guanidinium stickers and lysine‐like ammonium spacers undergo chain collapse and liquid‐liquid phase separation induced by reversible sticker associations. Sticker valence and tunable association strength jointly control the phase behavior, chain conformation, and interfacial cohesion of these ...
Seung‐Hwan Oh, Jinhoon Lee, Seunghyun Lee, Raehyun Jung, Sangyeop Lee, Su‐Mi Hur, Dong Woog Lee, Soo‐Hyung Choi   +7 more
wiley   +1 more source

Microenvironmental Tuning in Isostructural Conjugated Metal–Organic Frameworks for Superior Photocatalytic H2O2 Generation

Angewandte Chemie, EarlyView.
Two isostructural conjugated‐MOFs (Fe‐Tp and Mn‐Tp) photocatalysts were engineered with nonequivalent microenvironmental redox tuning for hydrogen peroxide production. The manganese analog engages both the oxygen reduction reaction and the water oxidation reaction while suppressing decomposition, delivering 10 487 µmol g−1 h−1 with an apparent quantum ...
Kayaramkodath Chandran Ranjeesh, Avanti Chakraborty, Pilar Pena Sánchez, Jose Ignacio Martinez, Abdul Khayum Mohammed, Nada Elmerhi, Stefano Canossa, Matjaž Finšgar, Felipe Gándara, Pradip Pachfule, Dinesh Shetty   +10 more
wiley   +2 more sources

Photocatalytic Recovery of Aromatic Chemicals from Waste Plastics

Advanced Science, EarlyView.
This Review summarizes recent advances in the photocatalytic recovery of aromatic chemicals from plastic waste, with emphasis on fundamental mechanism, representative catalytic systems, and future challenges and development directions, which is expected to provide in‐depth and valuable insights and references into the key role of sustainable catalysis ...
Lizhen Liu, Jutarat Jitrada, Jun Huang
wiley   +1 more source

Dyotropic Rearrangement of Hypervalent Iodine Species: Migrative Heterofunctionalization of Quaternary Carbons

Angewandte Chemie, EarlyView.
1,2‐Aryl migration involving in situ‐generated alkyl iodine(III) species proceeds through a previously unrecognized 1,2‐C/I(III) dyotropic rearrangement. Migratory aryl fluorination, acetoxylation, and alkoxylation of 2‐alkyl‐2‐aryl‐3‐iodopropanoates provide α‐heterofunctionalized products, accompanied by aryl migration from the α‐ to the β‐position ...
Chen‐Xu Liu, Qian Wang, Matthew D. Wodrich, Jieping Zhu   +3 more
wiley   +2 more sources