Results 81 to 90 of about 3,120 (207)

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  

Research Experience for Undergraduates Program, 2010 [PDF]

, 2010
Supported by the National Science ...
University of Arkansas, Fayetteville. Dept. of Chemistry and Biochemistry
core   +3 more sources

Multicomponent Synthesis of Fluorine‐Containing Bioactive Compounds and Drugs

European Journal of Organic Chemistry, Volume 28, Issue 38, October 15, 2025.
Multicomponent reactions are robust synthetic tools to assamble complex polyheterocycles and other interesting molecular architectures with potential application in medicinal chemistry, including their fluorine‐containing analogues. Fluorine atoms placed strategically into bioactive molecules often enhance essential pharmacokinetic parameters like ...
Ivette Morales‐Salazar, Perla Islas‐Jácome, Leonardo D. Herrera‐Zuñiga, Samuel Couve‐Bonnaire, Philippe Jubault, Eduardo González‐Zamora, Jean‐Philippe Bouillon, Alejandro Islas‐Jácome   +7 more
wiley   +1 more source

2-Thiabicyclo[3.2.0]hepta-3,6-Dienes. 3. Desulfuration and Sulfuration of 2-Thiabicyclo[3.2.0]hepta-3,6-Dienes and X-Ray Crystal Structure of 3a,6,7,8,9,9a-Hexahydro-3a,5-Dimethylthieno[3,2-B][2]benzothiophene-2,3-Dicarbonitrile [PDF]

, 1982
The 2-3.2.0] hepta-3,6-Dienes 1–7 Extrude Sulfur in Solution at 285 °C to Give the 1,2-Benzenedicarbonitriles 8–12 in Yields of 42–56%. 5-(1,1-Dimethylethyl)-3,6-Dimethyl-2-3.2.0] hepta-3,6-Diene-1,7-Dicarbonitrile (6) Reacts at 140 °C to Give a Mixture ...
den Hertog, Herman J., Hall, Richard H., Harkema, Sybolt, Reinhoudt, David N., Uiterwijk, Jos W.H.M., van Hummel, Gerrit J.   +5 more
core   +2 more sources

2H-Pyrrole und Pyrrole aus 3-Phenyl-2H-azirinen

CHIMIA, 1976
Vinyl-phosphonium salts [2] and phenyl-vinyl-sulfone or divinylsulfone react with benzonitril-methylides a (which are photochemically generated from 3-phenyl-2H-azirines 1 and 2) to give, via the nonisolated intermediates of type b, 2H-pyrrole 4 and the
Ulrich Widmer, Nikolas Gakis, Bruno Arnet, Heinz Heimgartner, Hans Schmid   +4 more
doaj   +1 more source

Kupferkatalysierte, hochgradig enantioselektive Addition eines Siliciumnukleophils an 3‐substituierte 2H‐Azirine unter Verwendung eines Si‐B‐Reagenzes [PDF]

, 2022
Zhiyuan Zhao, Ming Cui, Elisabeth Irran, Martin Oestreich   +3 more
openalex   +1 more source

Aromaticity and Photoreactivity of 4‐ and 3‐Nitrenopyridine 1‐Oxides and Phenylnitrene

Journal of Physical Organic Chemistry, Volume 38, Issue 10, October 2025.
NICS(1.7)zz, ACID, and spin density calculations reveal that triplet 4‐nitrenopyridine oxide, 3‐nitrenopyridine oxide, and phenylnitrene display Baird triplet aromaticity. These findings help clarify the relationships between structure and aromaticity in triplet arylnitrenes. ABSTRACT The pursuit of sustainable organic synthesis has renewed interest in
Fiona J. Wasson, Anindya Borah, Dmitrii Govorov, W. Dinindu Mendis, James S. Poole, Bruce S. Ault, William L. Karney, Anna D. Gudmundsdottir   +7 more
wiley   +1 more source

Polymerization‐Induced Direct Photolithography of Quantum Dots

Macromolecular Rapid Communications, Volume 46, Issue 18, September 19, 2025.
We present a comprehensive overview of photochemical polymerization strategies for direct lithographic patterning of colloidal quantum dots (QDs). Reaction mechanisms are categorized by functional group type, and their application is discussed in terms of pattern fidelity, photostability, and environmental robustness, highlighting the potential of ...
Taehyung Kim, Namyoung Gwak, Nuri Oh, Tae Ann Kim   +3 more
wiley   +1 more source

Synthesis and reactions of aminopropenes, which contains functional groups [PDF]

, 2013
В рамках данной работы осуществлен синтез енаминов, содержащих остатки первичных, вторичных, третичных аминов, а также амидную и тиоамидную группы. Проведено комплексное исследование структуры полученных соединений с помощью спектральных методов, включая
Lugovik, K. I., Луговик, К. И.
core  

Synthesis of Siphonazole B Through Domino Cycloisomerization‐Oxazolonium Ion Rearrangements

Chemistry – A European Journal, Volume 31, Issue 40, July 17, 2025.
The study by Strand and co‐workers describes a concise synthesis of siphonazole B. Both oxazole units are formed from a simple propargylamine using a novel domino cycloisomerization‐rearrangement approach. Additional synthetic features include a direct aldol‐type reaction for assembling the tricyclic siphonazole core and an oxidative amidation reaction
Filip Paulsen, Sebastian Clementson, Henrik von Wachenfeldt, Michał Antoszczak, Simon Fridolf, Daniel Strand   +5 more
wiley   +1 more source