Results 81 to 90 of about 1,253 (148)

Aqueous Kabachnik -Fields synthesis of HMF-functionalized chitosan for thermally-stable LBL coatings on cotton fabrics

open access: yesCarbohydrate Polymer Technologies and Applications
This study explores the Kabachnik-Fields (KF) reaction between chitosan, diethyl phosphite (DEP) and biorefinery-derived 5-hydroxymethylfurfural (HMF) to produce chitosan-diethyl phosphite-HMF (CDH) derivatives for thermally-stable coatings.
M. Checa, P.J. Arauzo, A. Kruse
doaj   +1 more source

A practical theoretical formalism for atomic multielectron processes: direct multiple ionization by a single Auger decay or by impact of a single electron or photon

open access: yes, 2017
Multiple electron processes occur widely in atoms, molecules, clusters, and condensed matters when they are interacting with energetic particles or intense laser fields. In this work, a unified and accurate theoretical formalism is proposed on the direct
Liu, Pengfei   +2 more
core   +1 more source

Stereoselective Synthesis of α‐Aminophosphonic Acids through Pudovik and Kabachnik‐Fields Reaction [PDF]

open access: yes, 2017
Representative examples concerning the Pudovik and Kabachnik‐Fields reactions as the main strategies for the stereoselective synthesis of α‐aminophosphonic acids are discussed, classifying these reactions according to the chiral auxiliary and chiral ...
Ordóñez, Mario   +2 more
core   +2 more sources

Microwave Synthesis and Antimicrobial Evaluation of Selected Aminophosphonates

open access: yesChemistry Proceedings
In the search for new bioactive molecules, a series of new molecules from the phosphonate family were synthesized via the Kabachnik–Fields reaction (phosphonate ester) and the Irani–Moedritzer reaction (phosphonic acids).
Nour El Houda Felkaoui   +3 more
doaj   +1 more source

Practical use of results of pilot studies in the solution of production tasks for machining of edges of wood-shaving plates by a method of cylindrical milling [PDF]

open access: yes, 2013
Предлагается методика определения рациональных режимов резания с учетом производительности оборудования, качества продукции, расхода электроэнергии и инструмента, а также установления минимальной себестоимости механической обработки.
Аникеенко, А. Ф.   +2 more
core  

Observation of Parity-Unfavored Transitions in the Nonresonant Photoionization of Argon

open access: yes, 1995
Single-photon ionization of an atom or molecule can be subdivided into parity-favored and -unfavored transitions, the latter characterized by electron emission, preferentially perpendicular to the electric vector.
Becker, U.   +5 more
core   +1 more source

Relationship between Structure and Antibacterial Activity of α-Aminophosphonate Derivatives Obtained via Lipase-Catalyzed Kabachnik-Fields Reaction. [PDF]

open access: yesMaterials (Basel), 2022
Koszelewski D   +7 more
europepmc   +1 more source

Attosecond photoionization dynamics with stimulated core-valence transitions

open access: yes, 2016
We investigate ionization of neon atoms by an isolated attosecond pump pulse in the presence of two coherent extreme ultraviolet or x-ray probe fields.
Dahlström, Jan Marcus   +2 more
core   +1 more source

Determination of the time scale of photoemission from the measurement of spin polarization [PDF]

open access: yes, 2018
The Eisenbud-Wigner-Smith (EWS) time delay of photoemission depends on the phase term of the matrix element describing the transition. Because of an interference process between partial channels, the photoelectrons acquire a spin polarization which is ...
Dil, J. Hugo, Fanciulli, Mauro
core   +2 more sources

Phosphorus-containing flame retardants for wood-based products aminolysis polyurethahes [PDF]

open access: yes, 2013
Изучены структура и свойства продуктов аминолиза полиуретанов на основе сложных эфиров алифатическими аминами. В качестве алифатических аминов применялись этаноламины, этилендиамин, полиэтиленполиамины.
Балакин, В. М.   +2 more
core  

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