Results 181 to 190 of about 165,305 (402)

Dust evolution, a global view: IV. Tying up a few loose ends [PDF]

open access: yesarXiv, 2018
This work is an attempt to tie together some of the, seemingly disparate, loose ends from the preceding papers in this series into the global view of dust evolution in the interstellar medium. In particular, the nature of the hydro-carbonaceous, infrared absorption and emission band carriers is discussed within the context of a simple poly- hexa-cyclic
arxiv  

Syntheses of Chiral 2-Oxazolines from Isosorbide Epoxide Derivative

open access: yesMolbank
Two chiral monooxazolines were synthesized from a secondary amino alcohol, as a key intermediate, isolated in four steps from an isosorbide-derived epoxide.
Mohammed Kadraoui   +2 more
doaj   +1 more source

Aryl Hydrocarbon Receptor-Dependent inductions of omega-3 and omega-6 polyunsaturated fatty acid metabolism act inversely on tumor progression. [PDF]

open access: yes, 2020
The Western diet contains a high ratio of omega-6 (ω6) to omega-3 (ω3) polyunsaturated fatty acids (PUFA). The prototypical aryl hydrocarbon receptor (AHR) ligand, 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD), induces CYP1 family enzymes, which can ...
Hammock, Bruce D   +5 more
core  

Reactions of p-Nitrophenyloxirane with Amines Containing Fragments with Bicyclic Skeleton [PDF]

open access: yes, 2002
Reactions of p-nitrophenyloxirane with amines containing fragments with bicyclic skeleton of norbornene, norbornane, epoxynorbornane (stereoisomeric exo- and endo-5-aminomethylbicyclo[2.2.1]hept-2-enes, N-benzyl-endo-5-aminomethylbicyclo[2.2.1]hept-2-ene,
Golodaeva, E. A.   +3 more
core  

New Addition Reactions. III. Addition of Aliphatic Epoxides to Nitriles [PDF]

open access: green, 1962
Ryohei Oda   +3 more
openalex   +1 more source

5(S)-((3aR,4R,6aR)-2,2-Dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)-2-phenyl-4,5-dihydrooxazole

open access: yesMolbank
5(S)-((3aR,4R,6aR)-2,2-Dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)-2-phenyl-4,5-dihydrooxazole was synthesized from isosorbide in a three-step sequence, with an overall yield of 46%.
Liliana Boiaryna   +2 more
doaj   +1 more source

Hydrophilic Chitosan Derivatives: Synthesis and Applications

open access: yesChemistry – A European Journal, Volume 28, Issue 67, December 1, 2022., 2022
A benign and low‐cost alternative for fossil‐fuel‐sourced polymers, chitosan has tremendous potential because of its bioactivity, biocompatibility, biodegradability, and low toxicity. Synthetic pathways for chitosan derivatives with improved water solubility, and their associated applications, are explored. With the change in global direction towards a
Erez Cohen, Elena Poverenov
wiley   +1 more source

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