Results 81 to 90 of about 7,454 (221)

Bond Formation: Shaken, Not Stirred

Chemistry – A European Journal, EarlyView.
Shaking of seismo‐molecules efficiently transforms kinetic energy into storable chemical potential, unlocking high‐utility Gibbs free energy. This innovative mechanism pioneers uncharted scientific frontiers, introducing fascinating phenomena like seismochemistry, seismochromism, and seismofluorescence that redefine the boundaries of molecular ...
Alexander D. Q. Li
wiley   +1 more source

Anticancer Effects of Novel Tetrahydro-Dimethyl-Xanthene-Diones [PDF]

, 2020
Background: The derivatives of xanthene are known to have promising anticancer properties, in comparison to xanthene itself. Objective: The object of our study was to develop few xanthene derivatives (a family of fifteen novel 3,4,6,7-tetrahydro-3,3 ...
Alagumuthu, Manikandan, Arumugam, Siva Kumar, Singh - Nee Nigam, Poonam, Napoleon, Ayyakannu   +3 more
core   +1 more source

The Expanding Role of Diazirines in Synthetic Methodology

European Journal of Organic Chemistry, EarlyView.
Beyond their established role in photoaffinity labeling, diazirines have emerged as versatile reagents in synthetic chemistry. This review highlights their dual reactivity as carbene and nitrogen‐transfer precursors, showcasing mechanistic insights and diverse applications in cyclopropanations, cycloadditions, skeletal editing, amination, heterocycle ...
Viktor Savic, Dominik Schnalzer, Marko D. Mihovilovic, Michael Schnürch   +3 more
wiley   +1 more source

(E)-2,4-Diamino-5-{7-[(4-chlorophenyl)diazenyl]-3,3-dimethyl-1-oxo-2,3,4,9-tetrahydro-1H-xanthen-9-yl}-6-oxo-1,6-dihydropyridine-3-carbonitrile dimethylformamide monosolvate

IUCrData
In the title compound, C27H23ClN6O3·C3H7NO, much of the molecule is approximately planar, excluding the pyridinic ring, which is almost perpendicular to this plane, and the sp3 atoms of the modified xanthene system. The diazene group is E-configured.
Galal H. Elgemeie, Nadia H. Metwally, El-shimaa S. M. Abd Al-latif, Peter G. Jones   +3 more
doaj   +1 more source

Synthesis of Cysteine–Fluorophore Conjugates by Visible‐Light‐Promoted Thiol–Ene Coupling Using Organic Photocatalysts

European Journal of Organic Chemistry, EarlyView.
Cysteine–fluorophore conjugates were efficiently prepared through a visible‐light‐driven thiol–ene approach employing solely organic photocatalysts. The reaction proceeds under mild, metal‐free conditions. The fluorophore scope includes mono‐ and dialkene‐functionalized naphthalene, naphthalimide, and aromatic diimide derivatives.
Julieth Bellaizac‐Riascos, Pilar Ortiz‐Serna, Raúl Pérez‐Ruiz, Susana Encinas, M. Consuelo Jiménez   +4 more
wiley   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

PMF@SO3H nanosheet: an efficient novel bifunctional acid–base catalyst for the one-pot synthesis of 14-Aryl-14H-Dibenzo[a,j]xanthenes and evaluation of their antimicrobial activities supported by DFT and molecular docking studies

Journal of Saudi Chemical Society
This study presents the design and synthesis of a highly efficient solid acid catalyst based on mesoporous poly(melamine–formaldehyde) (MPMF) functionalized with 1,4-butanesultone.
Zahra Karimi, Leila Amiri-Zirtol, Zahra Nazemoroaya, Najmedin Azizi, Reza Ranjbar-Karimi, Seyedeh Narjes Abootalebi, Ahmad Gholami   +6 more
doaj   +1 more source

Fluorenone and Fluorenemalononitrile‐Tethered Conjugated Microporous Polymers for Efficient CO2 Uptake and Rhodamine B Removal

Macromolecular Rapid Communications, EarlyView.
TPET‐F2CN CMP exhibited higher CO2 uptake (2.88 mmol g−1 at 273 K) and superior Rhd B adsorption, with an equilibrium capacity of 98.12 mg g−1 and a maximum monolayer capacity of 155.6 mg g−1. ABSTRACT Herein, two conjugated microporous polymers (CMPs), TPET‐FO and TPET‐F2CN, are functionalized with carbonyl and nitrile groups.
Mohamed Gamal Mohamed, Ahmed M. Elewa, Nian‐Ping Chen, Ahmed F. Saber, Hira Karim, Yun‐Sheng Ye, Mohsin Ejaz, Cheng‐Wei Huang, Shiao‐Wei Kuo   +8 more
wiley   +1 more source

Reactivity of Oxidized Porous Silicon with Calcium Ion in Aqueous Media: Stability, pH Behavior, and Host‐Guest Strategies

Small, EarlyView.
Oxidized porous silicon, composed of an elemental silicon porous skeleton coated with a silica shell, reacts with aqueous Ca2+ to generate a mixed silica–calcium silicate matrix that is remarkably efficient at trapping small molecules. With an emphasis on the engineering of controlled‐release drug delivery systems, this study identifies the factors ...
Ruhan Fan, Qinglin Yang, Michael J. Sailor   +2 more
wiley   +1 more source

Synthesis and One‐Electron Reduction of Donor‐Acceptor‐Stabilized SiII–EII–SiII Trimetallylenes (E = Ge, Sn, Pb)

Angewandte Chemie, Volume 138, Issue 37, 7 September 2026.
The first isolable trimetallylenes (SiII)2EII (E = Ge, Sn, Pb) with pπ‐type silanylidenyl donors have been synthesized, having donor–acceptor electronic structures that give rise to near‐infrared absorption and enable access to bis(silanylidenyl)‐supported GeI and SnI radical anions upon one‐electron reduction with elemental potassium. ABSTRACT Herein,
Chaopeng Hu, Shenglai Yao, Christian Lorent, Matthias Driess   +3 more
wiley   +2 more sources