Results 121 to 130 of about 82,854 (283)

Swelling of acetylated wood in organic liquids

, 2005
To investigate the affinity of acetylated wood for organic liquids, Yezo spruce wood specimens were acetylated with acetic anhydride, and their swelling in various liquids were compared to those of untreated specimens. The acetylated wood was rapidly and
A. N. NAYER, C. B. VICK, E. Obataya, E. OBATAYA, F. P. LIU, R. M. ROWELL, R. M. ROWELL, S. Shibutani, T. KAGIYA, Y. ISHIMARU, Y. ISHIMARU   +10 more
core   +2 more sources

Carbonylative Suzuki–Miyaura Coupling of 1‐Iodoglycals Mediated by the N‐Heterocyclic Carbene Catalyst PEPPSI: Preparation of C‐Acyl Glycosides

European Journal of Organic Chemistry, EarlyView.
A multicomponent carbonylative Suzuki–Miyaura reaction was developed for the synthesis of C‐acyl glycosides. Using Pyridine‐Enhanced Precatalyst Preparation, Stabilization, and Initiation (PEPPSI‐IPr) catalysis and Mo(CO)6 as a solid CO source, the reaction enables selective carbonylation of three components in synthetically useful yields, providing a ...
Eurípedes de Aguiar, Mônica F. Z. J. Toledo, Flávia Manarin, João H. de Araujo‐Neto, Milene M. Hornink, Hélio A. Stefani   +5 more
wiley   +1 more source

Understanding protein–flavor interactions: Factors, characterization techniques, and the effect of processing

Food Biomacromolecules, EarlyView.
Abstract The perception of flavor in a food system depends on its release from the protein matrix. Apart from hydrogen bonding, hydrophobic interactions and van der Waal's forces, the formation of covalent adducts between the flavor and protein highly impacts the release of flavor from the protein matrix.
Arshita Verma, Somnath Basak, Rekha S. Singhal   +2 more
wiley   +1 more source

Acetylene terminated aspartimides and resins therefrom [PDF]

, 1989
Acetylene terminated aspartimides are prepared using two methods. In the first, an amino-substituted aromatic acetylene is reacted with an aromatic bismaleimide in a solvent of glacial acetic acid and/or m-cresol.
Connell, John W., Havens, Stephen J., Hergenrother, Paul M.   +2 more
core   +1 more source

Transannular O‐Heterocyclization Reactions of Cyclododeca‐1,5,9‐triene Derivatives: A New Concept for the Preparation of Key Intermediates for Total Syntheses of Annonaceous Acetogenins

Helvetica Chimica Acta, EarlyView.
Four stereogenic centers are formed diastereoselectively in one step from a cyclic (E,E)‐1,5‐diene system using an electrophilic addition reaction. Subsequent ozonolytic cleavage of the intact Z‐double bond, followed by intramolecular nucleophilic substitution, yields an octahydroterfurandione with a threo,cis,threo configuration, an arrangement found ...
Holger Schimanski, André Streiter, Micheline May, Oliver Mimkes, Johannes van Kempen, Constantin Daniliuc, Günter Haufe   +6 more
wiley   +1 more source

Physicochemical property and in vivo prebiotic function of α‐(1 → 2) and α‐(1 → 3)‐branched dextran derived from Leuconostoc citreum KD3

JSFA reports, EarlyView.
Abstract Background We isolated lactic acid bacteria (LAB) from Japanese traditional fermented foods and vegetables, and screened for exopolysaccharide (EPS)‐producing strains. The Leuconostoc citreum KD3 was isolated as a strain that produces an α‐glucan (KD3‐dextran) with α‐(1 → 6)‐linked main chain with a considerable amount of α‐(1 → 2) branches ...
Kentaro Yoshida, Shiori Shibata, Shuto Abe, Chiaki Matsuzaki, Yuji Honda, Kenji Matsumoto, Takashi Koyanagi   +6 more
wiley   +1 more source

Synthesis and Antibactrial Study of New 2-Amino-5-Aryl- 1,3-Thiazole-4-Carboxylic Acid Derivatives

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
2-Amino-5-aryl- 1,3-thiazole-4-carboxylic acid (A1-A3) were synthesized from the reaction of various aromatic aldehyde with dichloro acetic acid and thiourea.
Zina K. Al- Dulaimy, Aoras A. Kadhim, Abduljabbar Kh. Attia, Mohammed Z. Thani   +3 more
doaj  

Structural Characterization of Porous Photo‐Crosslinked Hybrid Networks Based on Collagen‐Poly(Trimethylene Carbonate)

Macromolecular Materials and Engineering, EarlyView.
Hybrid networks combining natural and synthetic polymers into one network may result in networks with good bioactivity, suitable mechanical properties, and high control over degradation. This study shows that phase‐separated networks are obtained with the collagen phase acting as multifunctional crosslinks.
Agustin Rios de Anda, Anne‐Constance Macarez, Marc Ankoné, Steve Spoljaric, Lieke H. A. van Dommelen, Elly M.M. Versteeg, Toin H. van Kuppevelt, Willeke F. Daamen, Dirk W. Grijpma, André A. Poot, Bas van Bochove   +10 more
wiley   +1 more source

A STUDY OF THE EFFECT OF ACETYLATION ON HEMP FIBRES WITH VINYL ACETATE

BioResources, 2012
Chemical modifications of hemp fibers were performed with acetic anhydride (AA) and vinyl acetate (VA) in the presence of pyridine or potassium carbonate as catalysts.
Nilgül Özmen
doaj  

Poly(2‐Oxazoline)‐Based Polyphotoacids: Synthesis, Solution Behavior, and Cellular Uptake of Multi‐Responsive Intracellular Transporters

Macromolecular Rapid Communications, EarlyView.
The ability of photoacids to increase their acidity in response to light irradiation (excited state proton transfer, ESPT) makes them attractive building blocks for the design of stimuli‐responsive copolymers. In this contribution, we present highly biocompatible polyphotoacids based on poly(2‐oxazoline)s bearing 1‐hydroxypyrene units. Low cytotoxicity,
Leonid I. Kaberov, Amod Godbole, Laura Klement, Sreevalsan Achikkulathu, Avinash Chettri, Benjamin Dietzek‐Ivanšić, Carsten Hoffmann, Felix H. Schacher   +7 more
wiley   +1 more source