Results 31 to 40 of about 426,028 (222)

Generation of Molecular Complexity from Cyclooctatetraene: Preparation of Aminobicyclo[5.1.0]octitols [PDF]

, 2015
A series of eight stereoisomeric N-(tetrahydroxy bicyclo-[5.1.0]oct-2S*-yl)phthalimides were prepared in one to four steps from N-(bicyclo[5.1.0]octa-3,5-dien-2-yl)phthalimide (±)-7, which is readily available from cyclooctatetraene (62 % yield).
Donaldson, William, El-Mansy, Mohamed F., Flister, Matthew, Kalous, Kelsey S, Lindeman, Sergey, Sem, Daniel S.   +5 more
core   +2 more sources

On the role of N-methylmorpholine-N-oxide (NMMO) in the generation of elemental transition metal precipitates in cellulosic materials

Cellulose, 2021
Several literature reports describe the role of aqueous solutions of N-methylmorpholine-N-oxide monohydrate (NMMO) as a suitable medium for the generation of transition metal (nano)particles in or on cellulosic materials and further elaborate its role as
T. Rosenau, A. Potthast, H. Hettegger, M. Bacher, Martina Opietnik, T. Röder, I. Adorjan   +6 more
semanticscholar   +1 more source

Effect of water on Bombyx mori regenerated silk fibers and its application in modifying their mechanical properties [PDF]

, 2008
The effect of water on regenerated silkworm silk fibers has been studied and compared with that of water on natural silkworm silk fibers. Regenerated fibers are spun from an N-methylmorpholine-N-oxide (NMMO) fibroin solution through a wet-spinning ...
Altman, Arai, Asakura, Chawla, Corsini, Fahnestock, Fink, Gosline, Gosline, Guinea, Guinea, Guinea, Hearle, Hofmann, Kaplan, Lazaris, Li, Marsano, Meister, Minoura, Nakamura, Nazarov, O'Brien, Panilaitis, Plaza, Pérez-Rigueiro, Pérez-Rigueiro, Pérez-Rigueiro, Pérez-Rigueiro, Riande, Scheller, Sofia, Termonia, Tsukada, Um, Work, Xu   +36 more
core   +2 more sources

Improvement in Carbonization Efficiency of Cellulosic Fibres Using Silylated Acetylene and Alkoxysilanes

Fibers, 2019
Comparative studies of the structure and thermal behavior of cellulose and composite precursors with additives of silyl-substituted acetylene and alkoxysilanes were carried out.
Maria Mironova, Igor Makarov, Lyudmila Golova, Markel Vinogradov, Georgy Shandryuk, Ivan Levin   +5 more
doaj   +1 more source

Study on the Preparation and Properties of Jute Microcrystalline Cellulose Membrane

Molecules, 2023
The preparation and performance control of the cellulose membrane are one of the hot topics in the environmentally friendly separation membrane field. In this study, microcrystalline cellulose (MCC) was prepared by microwave-assisted acidic hydrolysis of
Zhengyong Liang, Xing Li, Meng Li, Yulu Hong   +3 more
doaj   +1 more source

Antifungal Composite Fibers Based on Cellulose and Betulin

Fibers, 2018
Composite fibers and films based on cellulose and betulin were spun for the first time from solutions in N-methylmorpholine-N-oxide using the dry–wet jet method.
Igor Makarov, Markel Vinogradov, Tatyana Gromovykh, Sergey Lutsenko, Nataliya Feldman, Gulbarshin Shambilova, Vera Sadykova   +6 more
doaj   +1 more source

Bioremediation of N-Methylmorpholine-N-Oxide: A Scientific Evaluation

, 2022
N-Methylmorpholine-N-Oxide (NMMO) – a bulk solvent for cellulose in industrial fiber making processes, has high cellulose dissolving capacity and lesser toxicity than CS2 which finds widespread use in the textile industry. In the NMMO process, more than 99% of the solvent is recycled within the process making the fabric eco-friendly.
openaire   +1 more source

Total Synthesis of (+)‐Melonine and (+)‐N4‐Oxy Melonine Enabled by an Intramolecular Alkene Diamination Reaction

Angewandte Chemie, Volume 138, Issue 7, 9 February 2026.
A complexity‐generating intramolecular alkene diamination constitutes the pivotal step in the enantioselective synthesis of the title natural products featuring a strained, cage‐like pentacyclic architecture. Abstract Among more than four thousand monoterpene indole alkaloids (MIAs) isolated to date, only a few feature a 2,2,3‐trisubstituted indoline ...
Vincent Goëlo, Qian Wang, Jieping Zhu
wiley   +2 more sources

Enantioselective Organocatalytic Intramolecular Diels−Alder Reactions. The Asymmetric Synthesis of Solanapyrone D [PDF]

, 2005
The first direct enantioselective organocatalytic intramolecular Diels−Alder reaction has been accomplished. The use of iminium catalysis has provided a new catalytic strategy for the enantioselective [4 + 2] cycloisomerization of a wide variety of ...
Jen, Wendy S., MacMillan, David W. C., Wilson, Rebecca M.   +2 more
core   +1 more source

The Effect of Alcohol Precipitants on Structural and Morphological Features and Thermal Properties of Lyocell Fibers

Fibers, 2020
This research examines the possibilities of regulating the structure of cellulose precursor fibers spun from solutions in N-methylmorpholine-N-oxide when replacing aqueous coagulation baths with thermodynamically softer alcohol baths at different ...
Igor S. Makarov, Lyudmila K. Golova, Markel I. Vinogradov, Ivan S. Levin, Georgiy A. Shandryuk, Natalia A. Arkharova, Yaroslav V. Golubev, Anna K. Berkovich, Timofei V. Eremin, Elena D. Obraztsova   +9 more
doaj   +1 more source