Angewandte Chemie, EarlyView.A NiH‐catalyzed α‐alkenylation via Markovnikov hydronickellation of alkynes enables convenient access to α‐chrial β‐methylene carbonyl frameworks that are prevalent in biorelevant molecules. High regio‐ and enantioselectivities have been achieved with excellent functional group tolerance and applicability toward complex structures. The β‐methylene unit
Hyeontaek Nam +3 more
wiley +2 more sources
Formulation and evaluation of C-Ether fluids as lubricants useful to 260 C [PDF]
Three base stocks were evaluated in bench and bearing tests to determine their suitability for use at bulk oil temperatures (BOT) from -40 C to +260 C. A polyol ester gave good bearing tests at a bulk temperature of 218 C, but only a partially successful
Clark, F. S., Miller, D. R.
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Angewandte Chemie, EarlyView.Rh‐catalyzed chemodivergent parallel kinetic resolution of racemic 1,6‐enynes with α‐fluoroacrylamides or mixtures of different acrylamides proceeded via [2+2+2] cycloaddition and C–H alkylation to afford structurally and stereochemically distinct products with high selectivity under mild conditions.
Shintaro Hamada +5 more
wiley +2 more sources
Simulation of lubricating behavior of a thioether liquid lubricant by an electrochemical method [PDF]
An electrochemical cell was constructed to explore the possible radical anion forming behavior of a thioether liquid lubricant. The electrochemical behavior of the thioether was compared with the electrochemical behavior of biphenyl, which is known to ...
Morales, W.
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Oxygen-Free Regioselective Biocatalytic Demethylation of Methyl-phenyl Ethers via Methyltransfer Employing Veratrol-<i>O</i>-demethylase. [PDF]
ACS Catal, 2020 Grimm C +7 more
europepmc +1 more source
High performance polymer development [PDF]
The term high performance as applied to polymers is generally associated with polymers that operate at high temperatures. High performance is used to describe polymers that perform at temperatures of 177 C or higher.
Hergenrother, Paul M.
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Liquid lubricants for advanced aircraft engines [PDF]
An overview of liquid lubricants for use in current and projected high performance turbojet engines is discussed. Chemical and physical properties are reviewed with special emphasis placed on the oxidation and thermal stability requirements imposed upon ...
Fusaro, Robert L., Loomis, William R.
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The stability of new transparent polymeric materials: The epoxy trimethoxyboroxine system. Part 1: The preparation, characterization and curing of epoxy resins and their copolymers [PDF]
The effects of resin composition, curing conditions fillers, and flame retardant additives on the flammability of diglycidyl ether of bisphenol-A (DGEBA) as measured by the oxygen index is examined.
Lin, S. C., Pearce, E.
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Alkyl-bis-phényl éthers, nouvelles phytoalexines élaborées par Arachis hypogaea L. infectée par Puccinia arachidis Speg [PDF]
, 1991 Des alkyl-bis-phényl éthers ont été isolés et caractérisés pour la première fois en tant que phytoalexines à partir de feuilles d'arachide infectées par Puccinia arachidis.
Einhorn, J. +5 more
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Oxygen plasma resistant phosphine oxide containing imide/arylene copolymers [PDF]
A series of oxygen plasma resistant imide/arylene ether copolymers were prepared by reacting anhydride-terminated poly(amide acids) and amine-terminated polyarylene ethers containing phosphine oxide units. Inherent viscosities for these copolymers ranged
Jensen, Brian J.
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