Results 61 to 70 of about 2,777 (221)

Band Engineering of Benzothiadiazole‐Derived Metal‐Organic Frameworks for Photocatalytic Organic Transformations

open access: yesNational Materials, EarlyView.
BTID‐functionalized metal‐organic frameworks provide a modular platform for tailoring photocatalytic electronic structures through acceptor‐linker engineering. By correlating band alignment, charge‐transfer characteristics, and reactive oxygen species generation, this review highlights design principles that enable efficient visible‐light‐driven ...
Xin Li   +3 more
wiley   +1 more source

Main‐chain polyfullerenes: Taking fullerene to the next dimension

open access: yesPolymer International, EarlyView.
This short review appraises main‐chain polyfullerenes. Their slow development over 30 years has suddenly boomed with a rapid growth due to exciting developments in solar energy. Abstract This mini‐review gives an overview of the development, chemistry, properties and applications of main‐chain polyfullerenes.
Marco Antônio GB Gomes   +4 more
wiley   +1 more source

Strontium-Catalyzed Highly Enantioselective Michael Additions of Malonates to Enones

open access: yes, 2016
A novel catalyst system based on a chiral strontium complex which promotes the catalytic asymmetric Michael addition reactions of malonates to enones has been developed.
Shū Kobayashi (2450098)   +1 more
core   +3 more sources

Design and Synthesis of Polyheterocyclic Compounds Containing Pyrazolopyridopyrimidine Nucleus with Antimicrobial Activities

open access: yesChemistryOpen
This study reports the design, synthesis, and antibacterial evaluation of a library of novel polyheterocyclic derivatives featuring a unique fused pyrimidopyridopyrazole moiety.
Farag A. El‐Essawy   +1 more
doaj   +1 more source

Cu(OTf)2-Catalyzed Asymmetric Friedel-Crafts Alkylation Reaction of Indoles with Arylidene Malonates Using Bis(sulfonamide)-Diamine Ligands

open access: yes, 2013
Cu(OTf)2-Catalyzed Asymmetric Friedel-Crafts Alkylation Reaction of Indoles with Arylidene Malonates Using Bis(sulfonamide)-Diamine ...
吴凡, 王东平, 万伯顺, 吴静
core  

Crystal engineering of a series of arylammonium copper(II) malonates

open access: yes, 2010
We present a series of eight layered copper(II) malonates, each with a {[HA](2)[Cu(II)(mal)(2)(H(2)O)]}(n) A-B-A layer structure, where A is an ammonium cation and 13 is an anionic copper malonate layer (x = 1 or 2; A = benzylamine, 1; S-(alpha ...
Zimmermann, Iwan   +6 more
core   +1 more source

Advances in Unconventional and Sustainable Synthetic Approaches to Benzopyran Scaffolds

open access: yesThe 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   +4 more
wiley   +1 more source

Nucleophilic Addition/Double Cyclization Cascade Processes Between Enynyl Fischer Carbene Complexes and Alkynyl Malonates [PDF]

open access: yes, 2014
Two new selective cascade processes for enynyl Fischer carbene complexes 1 are described in their reaction with alkynyl malonates. When carbene complexes 1 react with the sodium enolate of homopropargyl malonates 3 a consecutive Michael type addition ...
Ángel L. Suárez-Sobrino
core  

Organocatalytic highly enantioselective conjugate addition of aldehydes to alkylidine malonates

open access: yes, 2008
The first highly enantioselective, direct organocatalytic conjugate addition of unmodified aldehydes to alkylidinemalonates is presented. The reaction gives access to β-formyl-substituted malonates and highly functionalized lactones with up to 14:1 dr ...
Bonneau, C   +6 more
core   +1 more source

Understanding the Dynamics of Mechanically Interlocked Molecular Systems via Metadynamics Simulations

open access: yesThe Chemical Record, EarlyView.
This Personal Account discusses how molecular simulations help uncover motion, shuttling mechanisms, and kinetics in mechanically interlocked molecules such as rotaxanes and catenanes. Mechanically interlocked molecules, such as rotaxanes and catenanes, display complex internal dynamics and reciprocal motions that are central to their use as artificial
Clara Sabrià   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy