Results 61 to 70 of about 916 (181)

Enantioselective Cascade Reactions of Aminocatalytic Dienamines and Trienamines Initiated by a Cycloaddition Reaction

Chemistry – A European Journal, Volume 31, Issue 1, January 2, 2025.
This review outlines and showcases how aminocatalytic dienamines and trienamines can be used in stereoselective cascade reactions, that are initiated by a cycloaddition reaction to rapidly access complex chiral molecules. We aspire that the chemical community can use this review to design new cascade reaction or use current methodologies in complex ...
Jonas Faghtmann, Signe Sofie Pladsbjerg Andresen, Anne Rask Østergaard, Karl Anker Jørgensen   +3 more
wiley   +1 more source

Catalytic Enantioselective Functionalization of Maleimides: An Update

Chinese Journal of Chemistry, Volume 42, Issue 24, Page 3605-3622, 15 December 2024.
Maleimides are multisite‐reactive scaffolds that have stimulated a growing interest in the field of synthetic organic chemistry. The present review covers the utilization of maleimides as electrophilic partners and pro‐nucleophilic partners in metal‐catalyzed or organocatalyzed functionalizations with the control of either central and/or axial ...
Muriel Amatore, Damien Bonne, Thierry Constantieux, Jean Rodriguez   +3 more
wiley   +1 more source

1,2‐Diaza‐1,3‐Dienes as a Multifaceted Synthons for the Synthesis of Heterocycles: A Fifteen‐Years Update

European Journal of Organic Chemistry, Volume 27, Issue 44, November 25, 2024.
1,2‐Diaza‐1,3‐butadienes, also called azoalkenes, have received considerable attention as key synthons for constructing various heterocyclic scaffolds. This minireview summarizes the contribution of our group in this field over the period from 2009 to the present, focusing on the role of the azoene building block in forming the heterocyclic structures.
Lucia De Crescentini, Giacomo Mari, Stefania Santeusanio, Gianfranco Favi, Fabio Mantellini   +4 more
wiley   +1 more source

The Concept of Polyheterocyclic Strategy

, 1997
This strategy is a synthetic procedure for the synthesis of molecules with multiple linked heterocyclic rings. This is important in fields such as medicine and materials science due to the diverse biological activities of these molecules, including antitumor and antimicrobial properties, as well as other valid applications.
openaire   +2 more sources

Thermal and Photoinduced Radical Cascade Annulation using Aryl Isonitriles: An Approach to Quinoline‐Derived Benzophosphole Oxides

Angewandte Chemie International Edition, Volume 63, Issue 30, July 22, 2024.
The synthesis of quinoline‐based benzophosphole oxides from ortho‐alkynylated aromatic phosphine oxides and aryl isonitriles is presented. These π‐extended benzophosphole oxides exhibit interesting photophysical and electrochemical properties. Abstract Herein, we present a radical cascade addition cyclization sequence to access quinoline‐based ...
Shyam Kumar Banjare, Lena Lezius, Elena S. Horst, Dirk Leifert, Constantin G. Daniliuc, Fatmah A. Alasmary, Armido Studer   +6 more
wiley   +1 more source

Determination of diffusion coefficients in polypyrrole thin films using a current pulse relaxation method [PDF]

The current pulse E sub oc relaxation method and its application to the determination of diffusion coefficients in electrochemically synthesized polypyrrole thin films is described. Diffusion coefficients for such films in Et4NBF4 and MeCN are determined
Martin, Charles R., Penner, Reginald M., Vandyke, Leon S.   +2 more
core   +1 more source

Cycloaddition reactions of conjugated azoalkenes [PDF]

, 2012
An overview of the use of 2H-azirines, conjugated nitrosoalkenes and conjugated azoalkenes bearing phosphorus substituents in addition and cycloaddition reactions is presented, focused on strategies for the synthesis of aminophosphonate and ...
Lemos, A.
core  

Ferrocén-szubsztituált heterociklusok és származékaik szintézise, szerkezetigazolása és komplex spektroszkópiai vizsgálata = Synthesis, structure determination and complex spectroscopic study of ferrocene-substituted heterocycles and their derivatives [PDF]

, 2007
Új, mono- és poliheterociklusokkal egyszeresen és többszörösen szubsztituált ferrocénszármazékokat állítottunk elő. Szerkezetüket komplex nagyműszeres vizsgálatokkal (IR, MS, röntgendiffrakció, multinukleáris NMR) derítettük fel.
Csámpai, Antal, Perjési, Pál, Sohár, Pál, Túrós, György István, Zsoldosné dr. Mády, Virág   +4 more
core  

Polyheterocyclic Systems Incorporating Pyrazole, Thiophene, Thiazole, and Thiadiazole Moieties.

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Kamal M. Dawood, Eman A. Ragab, Ahmad M. Farag   +2 more
openaire   +1 more source

Enhancing the Photocatalytic Activity via Direct Covalent Functionalization in Single‐Walled Carbon Nanotubes

Advanced Functional Materials, Volume 34, Issue 14, April 3, 2024.
The control on the direct functionalization of single‐walled carbon nanotubes with the organophotocatalyst PTH allowed the creation of hybrid materials with enhanced charge transfer properties able to overcome homogeneous counterparts in the photoreductive debromination of aromatic halides with a robust character toward the stability during operation ...
José Luis Nova‐Fernández, Daniel González‐Muñoz, Gustavo Pascual‐Coca, Mattia Cattelan, Stefano Agnoli, Raúl Pérez‐Ruiz, José Alemán, Silvia Cabrera, Matías Blanco   +8 more
wiley   +1 more source