Results 51 to 60 of about 556 (164)

Dynamic path bifurcation for the Beckmann reaction: observation and implication [PDF]

open access: yes, 2010
The reaction of oximes to amides, known as the Beckmann rearrangement, may undergo fragmentation to form carbocations + nitriles instead of amides when the cations have reasonable stability.
Ammal, Salai Cheettu   +3 more
core   +1 more source

Growth-coupled bioconversion of levulinic acid to butanone

open access: yesMetabolic Engineering, 2019
Common strategies for conversion of lignocellulosic biomass to chemical products center on deconstructing biomass polymers into fermentable sugars. Here, we demonstrate an alternative strategy, a growth-coupled, high-yield bioconversion, by feeding cells a non-sugar substrate, by-passing central metabolism, and linking a key metabolic step to ...
Christopher R, Mehrer   +8 more
openaire   +3 more sources

Monophenylborane: synthesis and use in hydroborations [PDF]

open access: yes, 1986
Monophenylborane was generated in situ by the addition of acid to lithium phenyiborohydride. Methanesuifonic acid was found to be the acid of choice. The reaction was performed in the presence of alkenes to give dialkylphenylboranes, which were found to ...
Edwards, Robbie Melinda
core   +1 more source

Psychotropic agents. I. Synthesis of 1-pyridinyl-1-butanones, 1-indolyl-1-butanones and the related compounds.

open access: yesChemical and Pharmaceutical Bulletin, 1978
In order to search for new psychotropic agents, several 1-butanone derivatives (VIII) substituted by pyridine, indole or quinoline were synthesized. And the carbonyl group of VIII was modified to methylene (XII), secondary alcohol (XIII) and vinyl (XIV). The effects of the compounds on spontaneous motor activity and rotarod test in mice were determined.
M, Sato   +6 more
openaire   +3 more sources

Ketene Reactions: I. The Addition of Acid Chlorides to Dimethylketene ; II. The Cycloaddition of Ketenes to Carbonyl Compounds [PDF]

open access: yes, 1970
Part I describes the addition of several acid chlorides to dimethylketene. The resulting 3-ketoacid chlorides were isolated and characterized. Part II describes the cycloaddition of several aldoketenes to chloral.
Smith, Larry
core  

Emission risks in processing and conversion of lignocellulose-based biocomposites [PDF]

open access: yes
Wood-derived components (e.g. fibers, lignin, nanofibers) are widely studied to develop thermoplastic biocomposites with, for example, improved mechanical properties and reduced global warming potential.
Catalán, Julia   +3 more
core   +1 more source

Methyl vinyl ketone impairs spatial memory and activates hippocampal glial cells in mice. [PDF]

open access: yesPLoS One, 2023
Sato RY   +6 more
europepmc   +1 more source

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