Results 91 to 100 of about 30,052 (257)

Crystal structure of (1Z,2E)-cinnamaldehyde oxime

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compound, C9H9NO, crystallized with two independent molecules (A and B) in the asymmetric unit. The conformation of the two molecules differs slightly with the phenyl ring in molecule A, forming a dihedral angle of 15.38 (12)° with the oxime ...
Bernhard Bugenhagen, Nuha Al Soom, Yosef Al Jasem, Thies Thiemann   +3 more
doaj   +1 more source

Multidimensional Engineering Enabling Rate‐Matched C−N Coupling for Efficient Organonitrogen Electrosynthesis

EcoEnergy, EarlyView.
This review introduces rate matching as a unifying design principle for efficient electrochemical C−N coupling and highlights multidimensional engineering of catalysts, interfaces, and reactors to synchronize the generation of carbon‐ and nitrogen‐containing intermediates, balance their surface coverages, maximize C−N bond formation, and enable ...
Kaixing Cai, Chunyang Pu, Jun Yang, Guangqin Li, Jiahui Xian   +4 more
wiley   +1 more source

Thermodynamics of Cyclohexanone Oxime

, 2016
The heat capacity of cyclohexanone oxime in the interval of (5 to 370) K was measured in an adiabatic calorimeter. The triple-point temperature Tfus = (362.20 ± 0.04) K and the enthalpy of fusion ΔcrliqHm° = (12454 ± 20) J·mol−1 were determined.
Vladimir N. Emel’yanenko (1290807), Yauheni U. Paulechka (1984033), Sergey P. Verevkin (1290813), Dzmitry H. Zaitsau (1529353), Gennady J. Kabo (1984048), Andrey V. Blokhin (1984042), Andreas Heintz (2042647)   +6 more
core   +1 more source

Bifunctional Reagents for Oxime Ligation [PDF]

, 2014
Oxime ligation is an effective conjugation strategy for biomolecules and polymers in aqueous solution. The reaction is chemoselective, joining an aldehyde or ketone electrophile with an aminooxy nucleophile.
Dandapat, Arpan
core   +1 more source

Synthetic Strategies for the Construction of Cyclobutane‐Fused Heterocycles

European Journal of Organic Chemistry, EarlyView.
Cyclobutane‐fused heterocycles are important motifs commonly present in bioactive compounds, recognized for their rigid 3D structures that confer unique properties. However, synthesizing these compounds remains challenging. This review discusses current methods for their synthesis, such as photochemical, metal‐catalyzed, and Lewis acid‐mediated [2 + 2]
Michela Vargiu, Mauro Uras, Angelo Frongia   +2 more
wiley   +1 more source

Combination of Hydrogen and Halogen Bonds in the Crystal Structures of 5-Halogeno-1H-isatin-3-oximes: Involvement of the Oxime Functionality in Halogen Bonding

Molecules
Various functional groups have been considered as acceptors for halogen bonds, but the oxime functionality has received very little attention in this context.
Eric Meier, Wilhelm Seichter, Monika Mazik   +2 more
doaj   +1 more source

Crystal structure of (E)-1-(4-chlorophenyl)ethanone O-dehydroabietyloxime

Acta Crystallographica Section E, 2014
The title compound, C28H34ClNO2 {systematic name: (E)-1-(4-chlorophenyl)ethanone O-[(1R,4aS,10aR)-7-isopropyl-1,4a-dimethyl-1,2,3,4,4a,9,10,10a-octahydrophenanthrene-1-carbonyl]oxime}, was synthesized from dehydroabietic acid.
Jian-Qiang Zheng, Yan-Jie Cui, Xiao-Ping Rao   +2 more
doaj   +1 more source

Chemoselective Aldehyde and Imine Reduction by a Macrocyclic Triazole–Borane Complex Triggered by a Non‐innocent Proton–Hydride Interaction

European Journal of Organic Chemistry, EarlyView.
This work describes the study on a new recyclable reagent, based on a macrocyclic triazole–borane complex. It showed high chemoselectivity for aldehyde reduction and reductive amination over ketones. This selectivity is driven by a noncovalent hydride–proton interaction that stabilizes the transition state for aldehydes but is sterically inhibited in ...
Luca Di Marino, Artur Brotons Rufes, Rosaria Schettini, Giorgio Della Sala, Francesco De Riccardis, Chiara Costabile, Irene Izzo   +6 more
wiley   +1 more source

Nerve agents: A clear and present danger to mankind [PDF]

Scripta Medica, 2019
This editorial is written on the occasion of the 25th anniversary of the infamous sarin and VX terrorist attacks in Japan, in order to increase the awareness of the potential terrorist use of nerve agents and to urge the preparedness to cope with its ...
Stojiljković Miloš P.
doaj  

1-INDANONE DERIVATIVES: A NOVEL ONE-POT APPROACH TO IMIDES VIA BECKMANN-LIKE REARRANGEMENT AND THEORETICAL INSIGHTS INTO THEIR INTERACTIONS WITH ACHE ENZYME [PDF]

Química Nova
The reaction of (E)-2,3-dihydro-1H-inden-1-one oxime (3) with carboxylic acid anhydrides and fatty acids aiming at the formation of the respective esters unexpectedly produced imides [5a-5c and 5d-5k] (81-95% yields).
Thiago R. F. Bastos, Telma Leda G. de Lemos, Raimundo Braz Filho, Aluísio Marques da Fonseca, Francisco J. Queiroz Monte   +4 more
doaj   +1 more source