Results 91 to 100 of about 1,712,028 (279)

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

Hypervalent Iodine Phenol Dearomatization Mediated by Mechanochemistry

Chemistry – A European Journal, EarlyView.
A solvent‐free mechanochemical process has been developed that enables the rapid oxidative dearomatization of phenols. This method produces spiranic dienones with decent to good yields. This process eliminates the need for expensive and environmentally harmful perfluorinated alcohols, such as hexafluoroisopropanol and trifluoroethanol, while adhering ...
Jérémie Cuillerier, Camille Rocq, Xavier Ottenwaelder, Sylvain Canesi   +3 more
wiley   +1 more source

Entry to new spiroheterocycles via tandem Rh(II)-catalyzed O–H insertion/base-promoted cyclization involving diazoarylidene succinimides

Beilstein Journal of Organic Chemistry
A facile approach to novel medicinally relevant spiro heterocyclic scaffolds (namely furan-2(5H)-ones, tetrahydrofurans and pyrans spiro-conjugated with the succinimide ring) has been developed.
Alexander Yanovich, Anastasia Vepreva, Ksenia Malkova, Grigory Kantin, Dmitry Dar’in   +4 more
doaj   +1 more source

Buried Interface Engineering via a Bifunctional Guanidino‐Carboxyl Molecular Bridge for Enhanced Performance and Stability in Perovskite Solar Cells

EcoEnergy, EarlyView.
A bifunctional molecular bridge using 4‐guanidinobutanoic acid (GCC) is constructed to comprehensively tailor the buried interface of PSCs. By passivating oxygen vacancies, optimizing energy‐level matching, and regulating perovskite crystallization, this strategy simultaneously boosts the power conversion efficiency to 25.37% (20.01% for 13.4 cm2) and ...
Ying Liang, Wenjing Zhou, Yongxuan Zhou, Jiahao Cheng, Wenjian Shen, Guijie Liang, Bin Li, Yong Peng, Zaifang Li, Liu Liu, Jun Yao, Yi‐Bing Cheng, Wangnan Li   +12 more
wiley   +1 more source

Stereoselective Transformation of Cyclodecene-1,4-dione Systems, Derived from Steroids, to the Corresponding spiro-γ-lactones. A Semiempirical MO Study

Molecules, 1999
The thermal and acid-catalyzed intramolecular rearrangement of the (Z)- and (E)-cyclodecene-1,4-dione compounds deriving from steroids, 2a,b and 3a,b, respectively, proceeds stereoselectively to give the corresponding configurationally different spiro ...
Milan Dabovich, Natalija Krstich, Lidija Bondarenko- Gheorghiu, Mihailo Lj. Mihailovich, Ivan Juranich, Vladimir Pavlovich, Ljubinka Lorenc   +6 more
doaj   +1 more source

Modulating Growth Kinetics and Defect Passivation in Ambient‐Air Evaporation‐Spray Deposition Enables Efficient and Stable Rigid/Flexible Perovskite Solar Cells

EcoEnergy, EarlyView.
ATC‐enabled synergistic crystalline regulation and defect passivation via evaporation‐spray deposition realizes 22.68% rigid and 20.13% flexible PSCs with remarkable stability and excellent universality for both rigid and flexible substrates. ABSTRACT Evaporation‐spray technique renders perovskites highly compatible with large‐scale manufacturing ...
Jiahao Cheng, Yifan Li, Yongxuan Zhou, Wenjian Shen, Cong Geng, Guijie Liang, Bin Li, Yong Peng, Jianlin Xu, Zaifang Li, Yi‐Bing Cheng, Wangnan Li   +11 more
wiley   +1 more source

Multicomponent synthesis of novel spiro-indoline-3,4′-pyran derivatives: in silico and in vitro study

Scientific Reports
In this work, a series of 15 novel spiro-indoline-3,4′-pyrans (4) were synthesized by a simple multi-component reaction. Several spectroscopic methods were used to fully characterize the produced compounds 4a–o.
Zahra Jamshidi, Seyed Mohammad Taghdisi, Khalil Abnous, Razieh Ghodsi, Farzin Hadizadeh   +4 more
doaj   +1 more source

Meroterpenoids Produced by Fungi: Occurrence, Structural Diversity, and Biological Activity (An Update: February 2020 to December 2025). [PDF]

Chem Biodivers
This review firstly summarizes the update of meroterpenoids from February 2020 to December 2025 by applying a new classification method based on twelve key non‐terpene precursors. ABSTRACT Meroterpenoids are a class of hybrid natural products, biosynthesized from terpenoid fragments and non‐terpenoid precursors, exhibiting a wide range of biological ...
Tang Y, Wei J, Jiang Z, Luo Y, Zhou Y, Yang J, Cui H.   +6 more
europepmc   +2 more sources

Research Progress of Three‐Terminal Perovskite/Silicon Tandem Solar Cells Based on Back‐Contact Silicon

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Perovskite/silicon tandem solar cells offer efficiencies beyond 30%, yet conventional architectures face trade‐offs between optical performance and current matching. Three‐terminal tandems employing silicon back‐contact bottom cells eliminate the current‐matching constraint while minimizing optical losses, offering superior energy yield under real ...
Yunhao Fan, Sheng Ma, Huanpei Huang, Zhengping Li, Wenzhong Shen   +4 more
wiley   +1 more source