Results 71 to 80 of about 3,215 (174)

Radical-scavenging Activity of Natural Methoxyphenols vs. Synthetic Ones using the Induction Period Method

Molecules, 2007
The radical-scavenging activities of the synthetic antioxidants 2-allyl-4-X-phenol (X=NO2, Cl, Br, OCH3, COCH3, CH3, t-(CH3)3, C6H5) and 2,4-dimethoxyphenol, and the natural antioxidants eugenol and isoeugenol, were investigated using differential ...
Ichiro Yokoe, Mariko Ishihara, Norihisa Okada, Toshiko Atsumi, Yoshinori Kadoma, Seiichiro Fujisawa   +5 more
doaj   +1 more source

On the Reactions of Eugenol and Isoeugenol with Aniline Hydrochloride

Nippon kagaku zassi, 1971
オイゲノールと塩酸アニリンを油浴の温度200°C以上に加熱すれば容易に脱アリル反応と脱メチル反応とが起こって,グアヤコールとカテコールとができ,このさい少量のフェノールをも生じる。 脱離したアリル基はアニリンにN-置換し,さらに複雑な転位反応ののち,p-プロピルアニリンを生じ,脱メチルによって生じたメチル基はアニリンおよびp-プロピルアニリンにN-置換を起こす。 イソオイゲノールもまったく同様の反応を起こすが,オイゲノールよりもはるかに反応性に富む。 これらの反応は生体内および製造加工中におけるプロピルベンゼン系フェノールエーテル類の分解反応の一つのモデルともなる。
Yasuji FUJITA, Shin-ichi FUJITA, Tõru OKABAYASHI   +2 more
openaire   +2 more sources

Síntesis de (Z)-2-((piridin-4-il)metileno)-[1,3]dioxolo[4,5-f]-indolin-3-ona y (Z)-2- ((piridin-2-il)metileno)-[1,3]dioxolo[4,5-f]-indolin-3-ona, Coordinación a Rodio, y su actividad catalítica en la hidroformilación en fase homogénea de alil y propenilbe

Revista de Investigaciones Universidad del Quindío, 2013
En este trabajo se reporta, la síntesis del nuevo complejo de RhCl(ƞ4- 1,5-COD)(N-het)], donde los N-het son los derivados piridin-indolinona, (Z)-2-((piridin-4-il)metilen)-[1,3]dioxo[4,5-f]-indolin-3-ona (1) and (Z)-2- ((piridin-2-il)metilen)-[1,3]dioxo[
Fernando Cuenú Cabezas, Rodrigo Abonia Gonzales, Victoria Alejandra Gómez Andrade   +2 more
doaj  

Terpenes and Phenylpropanoids with Potent Toxicity on Two Tephritid Fruit Flies and Reduced Impact to a Non-Target Parasitoid

Insects
Tephritid flies, highlighting Anastrepha fraterculus and Ceratitis capitata, cause substantial economic losses and trigger strict quarantine measures worldwide.
Letícia Jansen Medeiros, Michele Trombin de Souza, Mireli Trombin de Souza, Christian Peter Demari, Gabriel Radtke Abib, Leandro do Padro Ribeiro, Vanessa Nogueira Soares, Dori Edson Nava, Daniel Bernardi   +8 more
doaj   +1 more source

Transcriptome-wide analysis of PIP reductase gene family identified a phenylpropene synthase crucial for the biosynthesis of dibenzocyclooctadiene lignans in Schisandra chinensis

Synthetic and Systems Biotechnology
Phenylpropenes, such as isoeugenol and eugenol, are produced as defend compounds, floral attractants, and flavor constituents by phenylpropene synthases belonging to the PIP reductase family.
Tingyan Qiang, Yu Chen, Bin Li, Yuqing Dong, Xueping Wei, Jiushi Liu, Bengang Zhang, Haitao Liu, Peigen Xiao   +8 more
doaj   +1 more source

Reaksi Penataan Ulang Sigmatropik Hidrogen [1,3] Secara Termal dan Reaksi Penataan Ulang Prototropik [1,3] yang dikatalisis oleh Katalis Transfer Fase (Ptc) , [18]-Crown Ether-6: Semi-Sintesis Vanili dari Eugenol

Makara Seri Sains, 2002
Semi-synthesis of vanillin from eugenol can be divided into two step reactions namely, isomerization of eugenol intoisoeugenol, and cleavage oxidation of isomerization product into expected reaction product (vanillin).
Hendra Wijaya, Tony Sukri, Wahyudi Priyono Suwarso   +2 more
doaj  

Endogenous Glandular Chemistry and Methyl Eugenol-derived Metabolites in the Pheromone Communication of Bactrocera umbrosa. [PDF]

J Chem Ecol
Kiuchi T, Wee SL, Schulz S.
europepmc   +1 more source

Targeting NRF2 With Isoeugenol: A Promising Small Molecule for Neurodegenerative, Metabolic, and Chronic Inflammatory Disorders. [PDF]

Oxid Med Cell Longev
Silva A, Silva S, Rodrigues B, Simões G, Dinis I, Freitas M, Resende R, Bicker J, Fortuna A, Silva MM, Santos AE, Pinho SA, Neves B, Pereira CF, Cruz MT.   +14 more
europepmc   +1 more source

Diversity of volatile phenols and their newly identified precursors during different grape species development. [PDF]

Front Plant Sci
Zheng Z, Yang W, Qi M, Bai Y, Kong Q, Ye D, Cheng G, Yu K, Duan C, Lan Y.   +9 more
europepmc   +1 more source

Sourcing Vanillin <i>via</i> Fermentative Biotechnology. [PDF]

Food Technol Biotechnol
Schmid S, Berchtold B, Pichler H.
europepmc   +1 more source