Results 41 to 50 of about 26,685 (297)

Determination of Stability for imines derived from carbonyl compounds by conductivity measurements

Tikrit Journal of Pure Science, 2018
The project explained for the first time, how conductivity method was used in the determination of stability of some imines derived from mother compounds 2-acetyl pyridine, 3 or 4 –hydroxy benzaldehyde, and others. The method as found, simple precise
A.S.P. Azzouz, D.B.AL-Bakzo
doaj   +1 more source

Palladium-Catalyzed Double-Isocyanide Insertion via Oxidative N–O Cleavage of Acetyl Oximes: Syntheses of 2H‑Pyrrol-2-imines

, 2017
The palladium-catalyzed reaction of acetyl oximes with isocyanides was developed for the synthesis of 2H-pyrrol-2-imines. The key steps were (i) generation of an enamido-palladium­(II) species, (ii) migratory double-isocyanide insertion, and (iii ...
Jeh-Jeng Wang (1633303), Gopal Chandru Senadi (1633318), Ganesh Kumar Dhandabani (3752215), Ting-Yi Lu (1633312)   +3 more
core   +1 more source

Imine reductases (IREDs)

Current Opinion in Chemical Biology, 2017
Imine reductases (IREDs) have emerged as a valuable new set of biocatalysts for the asymmetric synthesis of optically active amines. The development of bioinformatics tools and searchable databases has led to the identification of a diverse range of new IRED biocatalysts that have been characterised and employed in different synthetic processes.
Mangas-Sanchez, Juan, France, Scott P, Montgomery, Sarah L, Aleku, Godwin A, Man, Henry, Sharma, Mahima, Ramsden, Jeremy I, Grogan, Gideon, Turner, Nicholas J   +8 more
openaire   +5 more sources

Synthesis and Reactions of New 4-Oxo-4H-benzopyran-3-carboxaldehydes Containing Hydroxy Groups or 2-Oxopyran Cycles

Molecules, 1998
The synthesis of eight hydroxy- and 2-oxopyranochromone-3-carboxaldehydes 3, 5 and their reactions with 2-hydroxyaniline, 2,4-dinitrophenylhydrazine and 2-benzothiazolylhydrazine were investigated.
Hafez M. El-Shaaer, Maria Matulova, Mikulas Furdik, Dusan Loos, Margita Lacova   +4 more
doaj   +1 more source

Synthesis of Novel 1-Oxo-2,3,4-trisubstituted Tetrahydroisoquinoline Derivatives, Bearing Other Heterocyclic Moieties and Comparative Preliminary Study of Anti-Coronavirus Activity of Selected Compounds

Molecules, 2023
A series of novel 1-oxo-2,3,4-trisubstituted tetrahydroisoquinoline (THIQ) derivatives bearing other heterocyclic moieties in their structure were synthesized based on the reaction between homophthalic anhydride and imines.
Meglena I. Kandinska, Nikola T. Burdzhiev, Diana V. Cheshmedzhieva, Sonia V. Ilieva, Peter P. Grozdanov, Neli Vilhelmova-Ilieva, Nadya Nikolova, Vesela V. Lozanova, Ivanka Nikolova   +8 more
doaj   +1 more source

Active Learning‐Accelerated Discovery of Fibrous Hydrogels with Tissue‐Mimetic Viscoelasticity

Advanced Functional Materials, EarlyView.
Active learning accelerates the design of fibrous hydrogels that mimic the viscoelasticity of native tissues. By integrating multi‐objective optimization and closed‐loop experimentation, this approach efficiently identifies optimal formulations from thousands of possibilities and decouples elasticity and viscosity. The resulting hydrogels offer tunable
Zhengkun Chen, Zheyuan Miao, Gary Tom, Austin H. Cheng, Elizaveta Gusarova, Benjamen Zondag, Tianyi Wu, Dianoosh Kalhori, Boris Hinz, Milad Abolhasani, Alán Aspuru‐Guzik, Eugenia Kumacheva   +11 more
wiley   +1 more source

Tetra(phenylethynyl)tin Is a New Reagent for Solvent-Free Alkynylation of Imines

Molbank, 2022
The first ZnCl2-catalyzed alkynylation of aldimines with tetra(phenylethynyl)tin was achieved under solvent-free conditions. The present methodology provides propargylamines in 38–62% yields.
Andrey S. Levashov, Elena V. Dvirnaya, Dzhamilay N. Konshina, Valery V. Konshin   +3 more
doaj   +1 more source

Photoreduction of imines. An environmentally friendly approach to obtain amines [PDF]

, 2005
The photoreduction of different imines to amines in alcoholic solvents is reported. The reduction involves a versatile and chemoselective methodology that is environmentally friendly in that it avoids the use of metal hydrides and other dangerous ...
Rodríguez, M.A. [0000-0003-0123-9905], Campos, P.J. [0000-0002-8917-0318], Ortega, M.   +2 more
core   +1 more source

Dual‐Function Interface Engineering for δ‐Phase‐Free Crystallization Toward Efficient and Stable FAPbI3 Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
This work presents a dual‐function interface engineering strategy using PEACl to suppress the formation of the non‐perovskite δ‐FAPbI3 phase at the critical SnO2 buried interface. This approach enables the direct crystallization of the photoactive α‐phase, yielding highly efficient and stable rigid (25.6%) and flexible perovskite solar cells with ...
Xiao Wu, Shengyuan Wang, Pok Fung Chan, Zhenyi Ni, Hengkai Zhang, Chun‐Jen Su, Junyi Zhu, Xinhui Lu   +7 more
wiley   +1 more source

Discovering new plant growth regulators: 4,5-annelated bicyclic sydnone imines - a new type of mesoionic compounds

, 2023
4,5-Annelated bicyclic derivatives of sydnone imines (6-cyano-1-substituted-[1,2,3]oxadiazolo[5,4-b]pyridin-1-ium-5-yl)amide hydrochlorides was prepared for the first time.
Daria, Gorbach, Anna, Margarit, Tatiana, Bilova, Maria, Cherevatskaya, Anastasia, Orlova, Anastasiya, Kamionskaya, Alena , Soboleva, Aditi, Basnet, Daria, Meshalkina, Natalia, Kalganova, Martina, Brode, Ivan, Godovikov, Svetlana, Silinskaya, Andrej, Frolov, Ludger A., Weissjohan, Ilia, Cherepanov   +15 more
core   +1 more source