Results 171 to 180 of about 11,828 (208)

Thermolytic decomposition of coniferyl alcohol

Journal of Analytical and Applied Pyrolysis, 1992
Abstract Thermolytic decomposition of coniferyl alcohol was studied at temperatures between 200°C and 275°C under an inert atmosphere, to shed more light on the initial thermal reactions in the thermochemical conversion of lignin. In this temperature range, dimerization and oligomerization reactions dominate, while side chain CC bond scission ...
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Capillary Zone Electrophoresis of Coniferyl Alcohol Oxidation Products

Journal of Agricultural and Food Chemistry, 2001
Capillary zone electrophoresis (CZE) was developed for the quantitative determination of dimers obtained by horseradish peroxidase-catalyzed oxidation of coniferyl alcohol. The influence of pH, electrolyte concentration, applied voltage, and temperature on CZE performance was investigated, resulting in an efficient and rapid separation.
D, Fournand, C, Lapierre
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Electrophoretic analysis of coniferyl alcohol oxidase and related laccases

ELECTROPHORESIS, 1994
AbstractGradient gel electrophoretic methods enabled a distinction to be made between coniferyl alcohol oxidase (CAO) of lignifying cell walls and a pI ∼ 9 pine “laccase” recently implicated in lignification (Science 1993 260, 672). Following treatment of a partially purified protein mixture from developing xylem of Pinus strobus with 2‐[N‐morpholine ...
P, Udagama-Randeniya, R, Savidge
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Coniferyl alcohol metabolism in conifers — I. Glucosidic turnover of cinnamyl aldehydes by UDPG: coniferyl alcohol glucosyltransferase from pine cambium

Phytochemistry, 2001
UDPG: coniferyl alcohol glucosyltransferase (CAGT; EC 2.4.1.111) isolated from cambial tissues of Pinus strobus was able to convert cinnamyl aldehydes as well as dihydroconiferyl alcohol into their corresponding 4-O-beta-D-glucosides in vitro. Cinnamyl aldehydes were glucosylated with comparable efficiency to coniferyl alcohol, the physiological ...
V, Steeves, H, Förster, U, Pommer, R, Savidge   +3 more
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Highly Selective Syntheses of Coniferyl and Sinapyl Alcohols

Journal of Agricultural and Food Chemistry, 1998
(E)-Isomers of coniferyl and sinapyl alcohols were readily and cleanly prepared in excellent yields from commercially available coniferaldehyde and sinapaldehyde by sodium triacetoxyborohydride reduction in ethyl acetate. No 1,4-reduction products, always produced in prior methods, could be detected.
Fachuang Lu, John Ralph
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“Solid Phase Synthesis of Cis-Coniferyl Alcohol”

Synthetic Communications, 2000
Abstract Synthesis of cis-coniferyl alcohol (4-hydroxy-5-methoxy-cinnamyl alcohol), using support on Wang's resin is described.
I. A. Rivero, S. Heredia
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Pyrolysis–GC/MS of sinapyl and coniferyl alcohol

Journal of Analytical and Applied Pyrolysis, 2013
Abstract Herein we report the fast pyrolysis of the lignin monomers sinapyl and coniferyl alcohol, as well as mixtures of the two, at 650 °C using pyrolysis–GC/MS. The total ion chromatogram area % of certain marker pyrolysates for each alcohol were summed and used to calculate sinapyl:guaiacyl (S:G) ratios in the mixtures; these ratios were then ...
Anne E. Harman-Ware, Mark Crocker, Aman Preet Kaur, Mark S. Meier, Dawn Kato, Bert Lynn   +5 more
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ChemInform Abstract: FREE RADICALS FROM CONIFERYL ALCOHOL AND ISOEUGENOL

Chemischer Informationsdienst, 1973
AbstractESR‐Spektren von photochemisch, ggf. in Gegenwart von Benzophenon, oxidiertem Coniferylalkohol (Ia) und Isoeugenol (Ib) werden diskutiert.
GERALD J. SMITH, IAN J. MILLER
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Effects of a Biologically Relevant Antioxidant on the Dehydrogenative Polymerization of Coniferyl Alcohol

Biomacromolecules, 2008
Dehydrogenation polymers (DHPs or synthetic lignins) were synthesized from coniferyl alcohol by enzymatic oxidation in the presence of ascorbic acid to study the potential effects of an antioxidant upon their structure. Specific interunit substructures (beta-O-4', beta-beta', and beta-5') were quantified by 13C NMR, which showed how ascorbic acid ...
Anders, Holmgren, Gunnar, Henriksson, Liming, Zhang   +2 more
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Synthesis of 14C-coniferyl alcohol (4-hydroxy-3-methoxycinnamyl alcohol)

Journal of Labelled Compounds and Radiopharmaceuticals, 1978
Coniferyl alcohol-β-14C or -γ-14C (IVa or IVb) was prepared by the reduction of methyl 4-acetylferulate-β-14C or γ-14C (IIIa or IIIb) with Vitride-T reagent [70% (w/v) solution of sodium bis(2-methoxyethoxy) aluminium hydride in benzene]. Several synthetic methods were compared in the preparation of 4-acetylferulic acid β-14C or γ-14C (IIa or IIb). The
H. M. Balba, Gerald G. Still
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