Results 261 to 270 of about 5,363,495 (332)
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Organic and biomolecular chemistry, 2019
The enhanced reactivity of a series of four aza aromatic compounds (AACs) participating in the Diels-Alder (DA) reactions with ethylene has been studied using Molecular Electron Density Theory (MEDT).
L. Domingo +2 more
semanticscholar +1 more source
The enhanced reactivity of a series of four aza aromatic compounds (AACs) participating in the Diels-Alder (DA) reactions with ethylene has been studied using Molecular Electron Density Theory (MEDT).
L. Domingo +2 more
semanticscholar +1 more source
Chemistry, 2022
The aza- ortho -quinone methide (aza- o -QM) chemistry has overwhelmingly progressed in the past few decades. This review aims to integrate various transition metal-catalyzed and organocatalytic strategies in taming aza -o- QM intermediates, including ...
Hsuan-Hung Liao +3 more
semanticscholar +1 more source
The aza- ortho -quinone methide (aza- o -QM) chemistry has overwhelmingly progressed in the past few decades. This review aims to integrate various transition metal-catalyzed and organocatalytic strategies in taming aza -o- QM intermediates, including ...
Hsuan-Hung Liao +3 more
semanticscholar +1 more source
Angewandte Chemie, 2021
The development of efficient and sustainable methods to access saturated N -heterocycles is of great importance because of the prevalence of these structures in natural products and bioactive compounds.
Chong-Heng Huang +3 more
semanticscholar +1 more source
The development of efficient and sustainable methods to access saturated N -heterocycles is of great importance because of the prevalence of these structures in natural products and bioactive compounds.
Chong-Heng Huang +3 more
semanticscholar +1 more source
Chemical Society Reviews, 2020
Boron-dipyrromethene (BODIPY) belongs to a family of organoboron compounds, commercialized as fluorescent dyes by Invitrogen™. As BODIPY derivatives, Aza-boron-dipyrromethene (Aza-BODIPY) dyes display superior spectral performances, such as red-shifted ...
Zhenxiong Shi +8 more
semanticscholar +1 more source
Boron-dipyrromethene (BODIPY) belongs to a family of organoboron compounds, commercialized as fluorescent dyes by Invitrogen™. As BODIPY derivatives, Aza-boron-dipyrromethene (Aza-BODIPY) dyes display superior spectral performances, such as red-shifted ...
Zhenxiong Shi +8 more
semanticscholar +1 more source
Recent Advances in the Synthesis of Heterocycles by the Aza-Wittig Reaction
Synthesis, 2021The formation of the C=N bond in recent studies on heterocyclic compounds via the aza-Wittig reaction is reviewed. Furthermore, two different strategies for the formation of heterocyclic compounds, including intermolecular and intramolecular aza-Wittig ...
M. Mahdavi +3 more
semanticscholar +1 more source
Angewandte Chemie, 2020
Nitrogen-containing polycyclic aromatic compounds (N-PACs) are an important class of compounds in materials science. We report on a new aza-annulative π-extension (aza-APEX) reaction that allows rapid access to a range of N-PACs in 11-84% yields from ...
K. Kawahara +3 more
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Nitrogen-containing polycyclic aromatic compounds (N-PACs) are an important class of compounds in materials science. We report on a new aza-annulative π-extension (aza-APEX) reaction that allows rapid access to a range of N-PACs in 11-84% yields from ...
K. Kawahara +3 more
semanticscholar +1 more source
NOVEL HETEROCYCLIC COMPOUNDS VIA AZA- AND BIS-AZA-WITTIG REACTIONS
Phosphorus, Sulfur, and Silicon and the Related Elements, 1991Abstract Two quinoxaline derivatives, 1 and 2, were prepared via a bis-aza-Wittig reaction when the suitable aromatic diamine was treated with (MeO)3PBr2/Et3N followed by the addition of benzil. Also, two additional novel heterocyclic compounds, 4 and 6 were prepared via an intramolecular aza-Wittig reaction.
Hamad Z. Alkhathlan, Hamad A. Al-lohedan
openaire +1 more source
Pyrrolopyrrole aza-BODIPY dyes for ultrasensitive and highly selective biogenic diamine detection
Sensors and actuators. B, Chemical, 2020Biogenic diamines (BAs) are important compounds in food chemistry and life science. Because of structural similarity of amines and low concentration of BAs in real samples, it is exceedingly challenging to design and develop highly efficient probes for ...
Lanqing Li +5 more
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Negatively Curved Octagon-Incorporated Aza-nanographene and its Assembly with Fullerenes.
Angewandte ChemieA negatively curved aza-nanographene (NG) containing two octagons was synthesized via a regioselective and stepwise cyclodehydrogenation procedure, where a double aza[7]helicene was simultaneously formed as an intermediate. Their saddle-shaped structures
Jun Liu +12 more
semanticscholar +1 more source