Results 61 to 70 of about 11,270 (260)

Visible‐Light‐Mediated Lewis Acid‐Catalyzed Diradical Hydrogen Atom Transfer Reaction of Enamides

Advanced Science, EarlyView.
The Lewis acid catalysis was crucial for the success of the DHAT reaction of enamides by lowering the energy of the triplet excited state and modulating the reactivity of the formed diradical intermediate in a carbon‐to‐carbon 1,5‐DHAT and consequent cyclization that allows the functionalization of C(sp3)−H bonds to construct a variety of novel β ...
Yao Huang, Baoyu Yang, Xiang Zhou, Israel Fernández, Kexue Xia, Yang Xiong   +5 more
wiley   +1 more source

Suppressing Morphological and Energetic Disorder in Copper Antimony Sulfide‐based Hole‐Transporting Materials via Ligand–Precursor Engineering for Efficient and Stable Perovskite Solar Cells

Advanced Science, EarlyView.
Sulfur‐precursor and ligand engineering regulate the nucleation, morphology, and energetic disorder of CuSbS2 nanocrystals for dopant‐free inorganic hole‐transport layers in perovskite solar cells. Thiourea‐assisted synthesis combined with optimized OAm/OAc coordination suppresses excessive anisotropic growth, enabling mixed plate‐like/quasi‐spherical ...
Ibrahimhan Dilci, Savas Sonmezoglu
wiley   +1 more source

A Novel Class of “Super‐Strained” Spiro Heterocycles: Gateway to 1‐Azaspiro[3.3]heptane Derivatives, and Biological Validation

Angewandte Chemie, EarlyView.
A new class of “super‐strained” spiro heterocycles—spirocyclic 1‐azabicyclo[1.1.0]butanes—was synthesized via insertion of cyclobutane‐, oxetane‐, and azetidine‐containing sulfonium reagents into substituted azirines. The stability of this new class of compounds was studied.
Philipp Natho, Annarita Vicenti, Marco Colella, Francesco Pasca, Giuseppe Romanazzi, Mauro Niso, Carmen Abate, Ernesto Mesto, Emanuela Schingaro, Renzo Luisi   +9 more
wiley   +2 more sources

Substituent Effects on the Stability and Antioxidant Activity of Spirodiazaselenuranes

Molecules, 2015
Spirodiazaselenuranes are structurally interesting compounds and the stability of these compounds depends highly on the nature of the substituents attached to the nitrogen atoms.
Devappa S. Lamani, Debasish Bhowmick, Govindasamy Mugesh   +2 more
doaj   +1 more source

Highly congested spiro-compounds via photoredox-mediated dearomative annulation cascade. [PDF]

Commun Chem, 2022
Zhou C, Shatskiy A, Temerdashev AZ, Kärkäs MD, Dinér P.   +4 more
europepmc   +1 more source

Rational Backbone Planarization for Doping‐Resilient Polymeric Hole Transport Materials Toward Stable and Scalable Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
Incorporating divinylbenzene into PTAA‐based copolymers induces backbone planarization and promotes polaron delocalization, leading to enhanced doping resilience and stabilized electronic structure. The resulting hole‐transport material, PDVB14, maintains robust performance under high dopant concentrations and prolonged device operation, offering a ...
Chanhyeok Kim, Seung Un Ryu, Du Hyeon Ryu, Hangyeol Kim, Jeongsu Kim, Dohyun Kim, Junwoo Lee, Kyeong‐Jun Jeong, Chang Eun Song, Sung Yun Son, Minjun Kim   +10 more
wiley   +1 more source

Borylcyclopropanes: Synthetic Strategies and Applications

Angewandte Chemie, EarlyView.
Borylcyclopropanes (cyclopropanes bearing a boron substituent) sit at the intersection of two privileged frameworks in synthesis. This review provides the first exhaustive survey of their chemistry, spanning metal–carbene, nucleophilic cyclization, radical, hydroboration, and C─H activation routes, and documenting applications in medicinal chemistry ...
Aiza A. Butt, Joseph M. Ready
wiley   +2 more sources

3'-R-Spiro[cycloalkyl-1(2), (hetaryl-3(4), 6'-[1,2,4]triazino[2,3-c]quinazoline]-2'(7'H)-2-оnes as a perspective class of compounds with actoprotective activity

Zaporožskij Medicinskij Žurnal, 2017
Quinazolines and their derivatives are a perspective class of compounds with versatile biological activities. Their representatives are used in medical practice as sleeping, diuretic, antimicrobial and antitumor drugs.
O. S. Kolomoets, О. Yu. Voskoboynik, I. S. Nosulenko, O. V. Krivoshey, A. I. Avramenko, G. G. Berest, S. I. Kovalenko   +6 more
doaj   +1 more source

A Nazarov-Ene Tandem Reaction for the Stereoselective Construction of Spiro Compounds. [PDF]

Chemistry, 2021
Etling C, Tedesco G, Kalesse M.
europepmc   +1 more source

Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories

Advanced Energy Materials, EarlyView.
In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen, Zheyu Zhang, Kelvian T. Mularso, Bonghyun Jo, Hyun Suk Jung   +4 more
wiley   +1 more source