Results 51 to 60 of about 1,058 (166)

Regiodivergent formal [4+2] cycloaddition of nitrosoarenes with furanyl cyclopropane derivatives as 4p components [PDF]

The Spanish Government AEI (grants PID2019- 107469RBI00/AEI and PID2022-138232NB ...
Coto, Darío, López García, Luis Ángel, Mata García, Sergio, Vicente Arroyo, Rubén   +3 more
core   +1 more source

Characterisation of Volatile Compounds Associated With the Flavour of Flatbreads: Effect of Sorghum, Cassava and Whole or Dehulled Red and White Cowpea Flours

Legume Science, Volume 7, Issue 4, December 2025.
ABSTRACT This study characterised the volatile compounds in flatbreads prepared from red non‐tannin sorghum flour, cassava starch, whole and dehulled red and white cowpea flours and composite flours (30% cowpea flour and varying combinations of cassava starch and sorghum flour).
Rita Dankwa, Sefater Gbashi, Oluwafemi Ayodeji Adebo, Heikki Aisala, Eugenie Kayitesi, Henriette L. de Kock   +5 more
wiley   +1 more source

Preparation of highly substituted tetrahydropyrans via a metal assisted dipolar cycloaddition reaction [PDF]

, 2009
A range of highly substituted tetrahydropyrans have been prepared by reaction of a donor-acceptor cyclobutane, where the donor is a metal-alkyne complex, with an aldehyde under Lewis 10 acid ...
Eric A. Allart (7165073), Gareth Pritchard (1249743), Mark Elsegood (1249893), Steven Christie (1256589)   +3 more
core   +1 more source

The Determination and Evaluation of Photoluminescence Quantum Yield of Colloidal Samples Using the Histogram‐Sampling Method

Advanced Quantum Technologies, Volume 8, Issue 11, November 2025.
A protocol is summarized for the measurements of photoluminescence quantum yield in colloidal samples. We highlight the importance of the non‐standard statistics inherently present in quantum yield measurements and introduce a method for the analysis of these measurements serving as a reliability test.
Kateřina Kůsová, Tomáš Popelář, Filip Matějka, Michal Vašíček   +3 more
wiley   +1 more source

Multistep Reactions Initiated by Amine‐Based Organometallic Methods

European Journal of Organic Chemistry, Volume 28, Issue 40, October 29, 2025.
The advent of C–H activation and other organometallic methodologies making use of transient directing groups or free amines themselves for the elaboration of amine substrates provides unique access to cascade‐type reactions that can generate significant molecular complexity in one pot. The pursuit of atom‐ and step‐economical pathways to access complex
Victoria D. Ho, Olutayo N. Farinde, Kendra K. Shrestha, Michael C. Young   +3 more
wiley   +1 more source

Synthesis of Bridged and Non-Bridged N-Heterocycles, Dichloromethyl- and Formyl-Salicylates, Pyran-4-ones,Chromanes and Isochromanes based on Cyclocondensation Reactions of 1,3-Bis(silyloxy)-1,3-butadienes and Oxime Dianions [PDF]

Regioselective cyclization reactions of 1,3-bis(silyloxy)-1,3-butadienes provide an elegant approach for the synthesis of various complex carba- and heterocycles.
Karapetyan, Vahuni (gnd: 140505830)
core   +1 more source

Phenazines Synthesis by Palladium‐Catalyzed Reductive Cyclization of 2‐Nitro‐N‐Phenylanilines Using Gaseous CO or Its Surrogates

Asian Journal of Organic Chemistry, Volume 14, Issue 10, October 2025.
A practical palladium (Pd)‐catalyzed approach enables the synthesis of phenazines by reductive cyclization of 2‐nitro‐N‐phenylanilines using either carbon monoxide (CO) gas or phenyl formate as an in situ CO source. The method avoids harsh reagents and minimizes byproducts.
Simone Galiè, Manar Ahmed Fouad, Cecilia Abbo, Francesco Ferretti, Fabio Ragaini   +4 more
wiley   +1 more source

Tribenzoylarsine – A Benign Arsenic Precursor for InAs Nanocrystals

Small, Volume 21, Issue 42, October 23, 2025.
A limited choice of available organoarsenic precursors and the need to employ hazardous reagents in the synthesis are among the main reasons behind the slow‐paced development of InAs nanocrystals. Here, the multigram synthesis of tribenzoylarsine – a novel nonpyrophoric and nonvolatile precursor is reported, which reacts with indium oleate without ...
Artsiom Antanovich, Volodymyr Shamraienko, Jannika Lauth, Vladimir Lesnyak   +3 more
wiley   +1 more source

2‐(N‐Hexylcarbazole‐3′‐yl)‐4‐pyridinealdehyde: Cyanide Detection via Benzoin Condensation

Luminescence, Volume 40, Issue 8, August 2025.
Probe A with carbazole‐pyridine‐aldehyde (D‐π‐A) was designed as a new ratiometric fluorescence sensor. Probe A showed highly selectivity and sensitivity towards CN− over the other competing anions, cations and neutral molecules. Surprisingly, the CN− sensing mechanism proceeded via benzoin condensation reaction.
Ahmet Battal, Mustafa Tavasli
wiley   +1 more source

Conformational studies on some nitrogen containing compounds. [PDF]

, 1971
Some N.M.R. techniques used in conformational analysis, the principal factors peculiar to heterocyclic conformational analysis, and the background to conformational effects in alkyl substituted hydroxylamines are reviewed. The synthesis of N-carbethoxy-
Williams, David A R
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