Results 181 to 190 of about 37,566 (244)

Advances in Unconventional and Sustainable Synthetic Approaches to Benzopyran Scaffolds

The Chemical Record, EarlyView.
This review provides a comprehensive and critical analysis of low‐impact synthetic methodologies reported in the last 8 years (2018–2026) for the construction of benzopyran‐derived scaffolds, such as coumarins, flavones, chromones, chromenes, and chromanes. The benzopyran scaffold is a versatile family of heterocycles found in a wide range of bioactive
Nathalia B. Sá, Patrick C. Nobre, Isabelly O. Ferreira, Juliano B. Azeredo, Vanessa Nascimento   +4 more
wiley   +1 more source

Regiospecific de mayo reactions of enamino ketones. [PDF]

Nat Commun
Zhu W, Sun X, Tian D, Cao S, Zhao X, Jiang Z.   +5 more
europepmc   +1 more source

Oxaziridines: Versatile Reagents in Modern Organic Synthesis

The Chemical Record, EarlyView.
Being capable of transferring an O atom and N‐group/atom, oxaziridines are considered multitasking agents. These are employed for diverse organic transformations, such as epoxidation of olefins, α‐ and γ‐hydroxylation/amination of carbonyl compounds, oxidation of sulfides, [3+2]cycloaddition with unsaturated systems.
Ajeet Chandra, Subba Rao Cheekatla, Keshaba Nanda Parida   +2 more
wiley   +1 more source

Intramolecular Stereospecific Skeletal Rearrangement via Nonclassical Carbocations. [PDF]

JACS Au
Patel K, Awwad B, Marek I.
europepmc   +1 more source

Sulfur‐ and Selenium‐Decorated Coumarins: Synthetic Strategies Involving Cyclization and Late‐Stage Functionalization

The Chemical Record, EarlyView.
Two decades of synthetic strategies for sulfur‐, selenium‐decorated coumarins are critically surveyed through 44 literature reports, with particular emphasis on derivatives functionalized at the C‐3 and C‐4 positions. This review reports the direct construction of the coumarin framework through cyclization processes and late‐stage functionalization of ...
Bruna R. Schneider, Laura D. de Avila, Mauricio C. D. F. Xavier, Alex F. C. Flores, Liane K. Soares, Gabriel P. da Costa, Angelita M. Barcellos   +6 more
wiley   +1 more source

Copper-catalysed site-selective arylation of pyrazoles. [PDF]

Nat Chem
Wang M, Hou X, Corio SA, Digal L, Hirschi JS, Dong VM.   +5 more
europepmc   +1 more source

Metal‐Catalyzed Benzannulation: Recent Advances in Catalyst Design, Mechanistic Insights, and Aromatic Framework Construction

The Chemical Record, EarlyView.
This review offers a contemporary overview of metal‐catalyzed benzannulation (2018–present) encompassing transition, main‐group, post‐transition, and rare‐earth‐metal catalysts. It systematically highlights catalyst design, mechanistic insights, stereo‐ and regioselectivity, and synthetic applications toward aromatic and heteroaromatic scaffolds, while
Sana Jamshaid, Divya Shrestha, Raju S. Thombal, Jeung Gon Kim, Kim Seong Cheol, Yong Rok Lee   +5 more
wiley   +1 more source

Enantioselective synthesis of axially chiral α-ketoamide diaryl ethers <i>via</i> asymmetric double carbonylation of cyclic iodonium salts. [PDF]

Chem Sci
Yao W, Wu XF.
europepmc   +1 more source

Electrochemical aptasensors for ultrasensitive multiplexed detection: Towards a new era of precision diagnostics and environmental monitoring

VIEW, EarlyView.
Electrochemical aptasensors are emerging as powerful platforms for precision diagnostics and environmental monitoring, owing to their high selectivity, programmability and compatibility with miniaturised systems. However, their broader application is constrained by limited signal intensity and challenges in reliable multiplexed detection.
Azadeh Abdi, Ngoan Thi Thao Nguyen, Riccardo Zulli, Jacopo Giaretta, Fariba Dehghani, Syamak Farajikhah   +5 more
wiley   +1 more source

"Store-and-Release" Strategy Enables Nickel-Catalyzed Deaminative Migratory Arylation of Aliphatic Amines. [PDF]

J Am Chem Soc
Kadam AA, Lee K, Liao Y, Knyazev A, Lourenço MJ, Tung P, Cauley AN, Dones JM, Oderinde MS, Kempson J, Roque JB.   +10 more
europepmc   +1 more source