Results 61 to 70 of about 5,918,604 (240)

Stabilization of Potentially Sticky Substances in Pulp Mill Process Water with Polysaccharides

open access: yesBioResources, 2015
Characterization of the dissolved and colloidal substances (DCS) in the process water of a bleached chemithermomechanical pulp (BCTMP) production line showed that the major lipophilic substances (wood resins) were dehydroabietic acid, linoleic acid ...
Bingyun Li   +3 more
doaj   +1 more source

Synthesis of pH-Sensitive and Self-Fluorescent Polymeric Micelles Derived From Rosin and Vegetable Oils via ATRP

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Preparation and application of sustainable polymers derived from renewable resources are of great significance. The aim of this study is to synthesize a kind of sustainable polymeric micelles from rosin and vegetable oils via atom transfer radical ...
Juan Yu   +8 more
doaj   +1 more source

Influence of peat formation conditions on the transformation of peat deposit organic matter [PDF]

open access: yes, 2015
The paper studies the individual composition of n-alkanes, polycycloaromatic hydrocarbons, steroids, bi-, tri-, and pentacyclic terpenoids of two peat deposits of rich fen Kirek located in Western Siberia.
Duchko, Mariya Aleksandrovna   +3 more
core   +1 more source

Tracers from Biomass Burning Emissions and Identification of Biomass Burning

open access: yesAtmosphere, 2021
The major organic compositions from biomass burning emissions are monosaccharide derivatives from the breakdown of cellulose, generally accompanied by small amounts of straight-chain, aliphatic, oxygenated compounds, and terpenoids from vegetation waxes,
Wenjing Li   +7 more
doaj   +1 more source

Copper(II) and iron(III) complexes of chiral dehydroabietic acid derived from natural rosin: metal effect on structure and cytotoxicity.

open access: yesMetallomics, 2021
A novel optically pure dinuclear copper (II) complex of a rosin derivative dehydroabietic acid (DHA, HL) was synthesized and fully characterized. The in vitro antitumor acticities of the copper(II) complex Cu2(μ2-O)(L)4(DMF)2 (1) was explored and ...
Bao‐Li Fei   +6 more
semanticscholar   +1 more source

Electrochemical Oxidation of Abietic and Dehydroabietic Acids for Sustainable Access to C‐7 and C‐15 Oxygenated Abietanes

open access: yesChemSusChem, Volume 19, Issue 9, 14 May 2026.
Batch and flow electrochemical methods enable direct C‐7 oxidation of abietic and dehydroabietic acids from colophony or their methyl derivatives to the corresponding ketones, while a mediated protocol enables additional C‐15 oxygenation, providing sustainable and selective routes to diversified abietane derivatives.
Inês S. Martins   +2 more
wiley   +1 more source

Identifying Food Packaging Migrants: Current Analytical Capabilities, Challenges, and Future Prospects

open access: yesComprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 3, May 2026.
ABSTRACT The migration of intentionally and non‐intentionally added substances (IAS/NIAS) from food packaging into foodstuffs presents a significant challenge to consumer health and food safety. Accurate and comprehensive identification of these chemical migrants is therefore paramount.
Xue‐Chao Song   +5 more
wiley   +1 more source

Crystal structure of (E)-1-(4-chlorophenyl)ethanone O-dehydroabietyloxime

open access: yesActa Crystallographica Section E, 2014
The title compound, C28H34ClNO2 {systematic name: (E)-1-(4-chlorophenyl)ethanone O-[(1R,4aS,10aR)-7-isopropyl-1,4a-dimethyl-1,2,3,4,4a,9,10,10a-octahydrophenanthrene-1-carbonyl]oxime}, was synthesized from dehydroabietic acid.
Jian-Qiang Zheng   +2 more
doaj   +1 more source

Reactions of Dehydroabietic Acid with Phenols

open access: yesJournal of Japan Oil Chemists' Society, 1992
A mixture of dehydroabietic acid (DHAA, RCOOH), phenol, and phosphoryl chloride was heated to give phenyl dehydroabietate in 83 % yield. In the reactions of cresols with DHAA under the same conditions, the yields of tolyl dehydroabietates increased with in the distance between methyl and hydroxyl group.p- MeC6H4O (O) CR> m-MeC6H4O (O) CR> o- MeC6H4O (O)
Jiro YAMAMOTO   +3 more
openaire   +2 more sources

Diterpenoid Diversity across Land Plants

open access: yesHelvetica Chimica Acta, Volume 109, Issue 4, April 2026.
Here we bridge the knowledge of diterpene chemical diversity, biosynthesis, and evolution from nonvascular mosses and liverworts to that known from vascular plants. ABSTRACT The diverse array of diterpenoid natural products stems from the ease of manipulating the promiscuity of diterpene cyclases.
Anita Berg   +2 more
wiley   +1 more source

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