Results 151 to 160 of about 426,028 (222)

From Desferrioxamine B Umpolung to an Enantiopure Bifunctional Chelator for ⁸⁹Zr-immunoPET. [PDF]

Chemistry
Zujew L, Raibaut L, Chambron JC.
europepmc   +1 more source

Three-component assembly and structure-function relationships of (-)-gukulenin A. [PDF]

Science
Gupta V, Wang Z, Combs JB, Wright T, Chen L, Lin B, Holmes R, Qin B, Oh J, Crawford JM, Herzon SB.   +10 more
europepmc   +1 more source

Borylation via iridium catalysed C-H activation: a new concise route to duocarmycin derivatives.

Org Biomol Chem
Cominetti MMD, Goddard ZR, Hood BR, Beekman AM, O'Connell MA, Searcey M.   +5 more
europepmc   +1 more source

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N-Methylmorpholine-N-oxide (NMMO): hazards in practice and pitfalls in theory

Cellulose, 2021
The hazards of handling N-methylmorpholine-N-oxide (NMMO) cannot be described often enough, although it is a rather common (co-)solvent for cellulose. Inaccuracies in the literature regarding the chemistry of NMMO, such as its role in solvent systems and in redox systems involving transition metal ions, increase the risk of dangerous failure of the ...
Thomas Rosenau, Alfred D. French
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Thermal hazards evaluation of the synthesis of N-methylmorpholine-N-oxide

Journal of Thermal Analysis and Calorimetry, 2021
This study focused on the assessment of thermal safety associated with the synthesis of N-methylmorpholine-N-oxide (NMMO), a reaction known to be hazardous. First, a reaction calorimeter (SIMULAR) was used to investigate the exothermic behavior of the reaction in the semi-batch operation.
Jiancun Gao, Chenguang Shi, Sisi Liu, Shengnan Wang, Wei Wang   +4 more
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Responsive and patterned cellulose nanocrystal films modified by N-methylmorpholine-N-oxide

Carbohydrate Polymers, 2020
A type of cellulose solvent, i.e., aqueous N-methylmorpholine- N-O xide (NMMO) solutions, was used to modify cellulose nanocrystal (CNC) photonic films. CNC films can be swollen by NMMO, resulting in red-shifted reflected colors. The swelling effect is supposed to come from NMMO permeation into the crystalline regions of individual CNCs and ...
Yu Zhang, Zhongjian Tian, Yingjuan Fu, Zhaojiang Wang, Menghua Qin, Zaiwu Yuan   +5 more
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Enhanced enzymatic hydrolysis of sugarcane bagasse by N-methylmorpholine-N-oxide pretreatment

Bioresource Technology, 2009
The cellulose dissolution solvent used in Lyocell process for cellulose fiber preparation, N-methylmorpholine-N-oxide (NMMO) monohydrate, was demonstrated to be an effective agent for sugarcane bagasse pretreatment. Bagasse of 20wt% was readily dissolved in NMMO monohydrate at 130 degrees C within 1h.
Kuo, C.H., Lee, C.K.
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Cellulose Fibers from Solutions of Bacterial Cellulose in N-Methylmorpholine N-Oxide

Fibre Chemistry, 2019
Fibers of bacterial cellulose were obtained for the first time from solutions in N-methylmorpholine N-oxide (NMMO) by using the concept of solid-phase dissolution of bacterial cellulose. The mechanism of solid-phase dissolution of bacterial cellulose in NMMO is examined with due regard to the structural and morphological characteristics of native ...
I. S. Makarov, L. K. Golova, M. I. Vinogradov, I. S. Levin, T. I. Gromovykh, N. A. Arkharova, V. G. Kulichikhin   +6 more
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Cellulose solutions in N-methylmorpholine-N-oxide (NMMO) – degradation processes and stabilizers

Cellulose, 2002
Efficient stabilization of cellulose solutions in NMMO(1) against side reactions and their harmful effects meansprevention of both homolytic and heterolytic side reactions, which is mainlyaccomplished by trapping radicals, formaldehyde, andN-(methylene)iminium ions (5).
Thomas Rosenau, Antje Potthast, Immanuel Adorjan, Andreas Hofinger, Herbert Sixta, Heinrich Firgo, Paul Kosma   +6 more
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Phase Transformations in a PAN–N-Methylmorpholine-N-Oxide–Water System

Colloid Journal, 2022
E. E. Palchikova, I. S. Makarov, M. V. Mironova, M. I. Vinogradov, L. K. Golova, V. G. Kulichikhin   +5 more
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