Results 31 to 40 of about 501,263 (263)

Selective Electrochemical Conversion of Biomass-derived Valeric Acid to Ethers/Esters

open access: yesInternational Journal of Electrochemical Science, 2018
To quantitatively convert biomass into value-added chemicals or biofuels is still a great challenge. Herein, we develop an efficient electrochemical method to convert the biomass-derived valeric acid into ethers (butyl methyl ether and butyraldehyde ...
Yuchen liu   +3 more
doaj   +1 more source

CONDENSATION OF SUCCINIC ANHYDRIDE WITH THE METHYL ETHERS OF DIHYDRIC PHENOLS.

open access: yes, 1937
CONDENSATION OF SUCCINIC ANHYDRIDE WITH THE METHYL ETHERS OF DIHYDRIC ...
G. A. DALAL, K. S. NARGUND
core   +1 more source

3D‐Printed Gradient Shape‐Memory Strain Sensors With Rewritable Gauge Factors

open access: yesAdvanced Functional Materials, EarlyView.
A 3D‐printed shape‐memory strain sensor combines thermomechanical programming with gradient architectural design. Preset strain rewrites the gauge factor (GF), while the gradient geometry amplifies the response through strain redistribution. Reprogrammable sensitivity enables the same sensor to detect weak pulse signals and monitor large‐amplitude ...
Xuan Zhang   +10 more
wiley   +1 more source

New [4 + 2] Cycloadditions of in situ Generated Indolyl Enol Ethers and Their Anions with Dimethyl Acetylenedicarboxylate: A One-Pot Access to 4-Alkoxy-Substituted Carbazoles

open access: yesCHIMIA, 1992
The 3-indolyl(methyl)methoxycarbenium tetrafluoroborates 1a?d were deprotonated with NaH to furnish in situ the highly reactive 3-indolyl enol ethers 2a or their corresponding 3-indolyl enol ether anions 2b.
Ulf Pindur, Martina Rogge
doaj   +2 more sources

The synthesis, separation, and identification of the methyl ethers of arabinose and their derivatives

open access: yes, 1967
A study has been made of various methods available for the identification and separation of the methyl ethers of arabinose. Gas–liquid partition chromatography has been used to separate the acetylated glycosides and the acetylated alditols of the methyl ...
J. K. N. Jones, S. C. Williams
core   +1 more source

Microfluidic Engineering of Microgels: A Review of Emerging Technologies, Materials, Fabrication Strategies, and Applications

open access: yesAdvanced Healthcare Materials, EarlyView.
Recent advances in microfluidic technologies for microgel fabrication are critically reviewed, highlighting the capabilities and limitations of major microfluidic platforms and discussing how platform design, material selection, and crosslinking strategies influence microgel architecture and functionality. Current challenges and future opportunities in
Afshin Abrishamkar   +6 more
wiley   +1 more source

Rhodium-Catalyzed Cleavage Reaction of Aryl Methyl Ethers with Thioesters

open access: yes, 2016
A rhodium complex catalyzed the reaction of aryl methyl ethers and thioesters giving the corresponding aryl esters and methyl sulfides. S-(p-Chlorophenyl) p-(dimethylamino)benzothioate was used for the reaction of methyl aryl ethers with electron ...
Yuri Nihei (2117929)   +3 more
core   +1 more source

Protein‐Polymer Dynamic Hydrogels Utilizing Native Ligand Binding for Injectable Therapeutic Delivery and 3D Printing

open access: yesAdvanced Healthcare Materials, EarlyView.
Dynamic nanocolloidal hydrogels were synthesized via the co‐assembly of ligand‐modified spheroidal hyperbranched poly(glycerol) (HPG) and soluble albumin nanoparticles (SANs). Co‐assembly occurred through self‐association of the HPG, as well as its interaction with SANs via native ligand binding.
S. Cem Millik   +9 more
wiley   +1 more source

Synthesis of naturally occurring partial methyl ethers of myricetin

open access: yes, 1974
The synthesis of combretol, annulatin, and europetin-naturally occurring partial methyl ethers of myricetin-is described. Condensation of 2, 4, 6-trihydroxy-ω-methoxyacetophenone with tri-O-methyl galloyl chloride or tri-O-benzyl galloyl chloride ...
Sarma, P. N.   +2 more
core   +1 more source

The Role of Viscoelasticity in Heterogeneous Glioblastoma Stem Cell Invasion in Biomimetic 3‐Dimensional Hydrogels

open access: yesAdvanced Healthcare Materials, EarlyView.
The role of viscoelasticity in the invasion of heterogeneous glioblastoma stem cells (GSCs) was investigated with GSCs categorized into subgroups based on molecular profile, as Reactive, Invasive, or Constructive using viscoelastic biomimetic hyaluronan‐oxime hydrogels.
Nicole J. Blaine   +4 more
wiley   +1 more source

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