Results 31 to 40 of about 4,505 (215)

Functionalization of 7-Hydroxy-pyranoflavylium: Synthesis of New Dyes with Extended Chromatic Stability

Molecules, 2022
This work reports the functionalization of pyranoflavyliums pigment using 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride coupling chemistry.
Ana Rita Pereira, Victor de Freitas, Nuno Mateus, Joana Oliveira   +3 more
doaj   +1 more source

Synthesis of Novel N-Substituted Dimethylmaleimidyl Esters and Their Applications as Plasticizers for Poly(Vinyl Chloride)

مجلة بغداد للعلوم, 2007
Three N-(hydroxylphenyl) dimethylmaleimides were directly prepared in good yields (81-86)% from the reaction of dimethylmaleic anhydride with amino phenols. The prepared imides were esterified to the corresponding benzoates, methacrylates and cinnamates
Baghdad Science Journal
doaj   +1 more source

Synthesis of Chondramide A Analogues with Modified β‐Tyrosine and Their Biological Evaluation [PDF]

, 2011
Starting from cinnamates 9 , obtained by Wittig reaction or Heck coupling, the diols 17 were prepared by asymmetric dihydroxylation. This was followed by a regioselective substitution of the 3‐OH group with hydrazoic acid under Mitsunobu conditions ...
Andavan, Arkin, Ashworth, Bai, Bubb, Chu, Crews, de Vries, Deechongkit, Dembinski, Diekmann, Eggert, Fry, Gala, Gala, Gala, Ghosh, Grieco, Haydar, Hirai, Hirai, Hu, Jansen, Ko, Kolb, Kunze, Lang, Lawrence, Liu, Loregian, Marimganti, Oda, Patel, Rao, Robinson, Schmauder, Schmauder, Staton, Swamy, Tannert, Tannert, Terracciano, Terracciano, Terracciano, Vintonyak, Waldmann, Waldmann, Watts, Zabriskie, Zampella, Zhang   +50 more
core   +1 more source

Synthesis and ring openings of cinnamate-derived N-unfunctionalised aziridines

Beilstein Journal of Organic Chemistry, 2012
tert-Butyl cinnamates are aziridinated with high trans-selectivity by an N–N ylide generated in situ from N-methylmorpholine and O-diphenylphosphinyl hydroxylamine.
Alan Armstrong, Alexandra Ferguson
doaj   +1 more source

2-Oxoglutarate-dependent dioxygenases in the biosynthesis of simple coumarins

Frontiers in Plant Science, 2014
Coumarins are natural plant products that have been the subject of extensive phytochemical and pharmacological research studies in the past few decades.
Bun-Ichi eShimizu
doaj   +1 more source

Esters of Cinnamic Acid as Green Plasticizers for Polylactide Formulations with Improved Ductility

Macromolecular Materials and Engineering, 2023
This study demonstrates the potential of different cinnamate esters, namely methyl trans‐cinnamate (MC), isobutyl cinnamate (IBC), allyl cinnamate (AC), and ethyl cinnamate (EC), as environmentally friendly plasticizers for polylactide (PLA). Plasticized
Alejandro Barandiaran, Jaume Gomez‐Caturla, Juan Ivorra‐Martinez, Diego Lascano, Miguel Angel Selles, Virginia Moreno, Octavio Fenollar   +6 more
doaj   +1 more source

Acute effects of decaffeinated coffee and the major coffee components chlorogenic acid and trigonelline on incretin hormones [PDF]

, 2011
10.1186/1743-7075-8-10Nutrition and ...
Deacon, C.F., Heine, R.J., Olthof, M.R., Van Dam, R.M., Van Dijk, A.E.   +4 more
core   +7 more sources

Decarboxylation of cinnamic acids using a ruthenium sawhorse

International Journal of Sustainable Engineering, 2018
The ruthenium sawhorse has proven effective in the conversion of trans-cinnamic acid, and substituted trans-cinnamic acids, giving an effective source of biobased styrene and styrene analogues. The reaction is especially versatile, as it achieves product
Kenneth M. Doll, Erin L. Walter, Rex E. Murray   +2 more
doaj   +1 more source

Applied Photochemistry – Light Controlled Perfume Release

CHIMIA, 2007
Ambient light is one of the most suitable available trigger conditions for the release of covalently bound volatile odorants in home- and laundry-care applications. We report on three complementary classes of light-cleavable fragrance precursors,
Samuel Derrer, Felix Flachsmann, Caroline Plessis, Melanie Stang   +3 more
doaj   +1 more source

Toxicity and larvicidal activity on Aedes aegypti of citronella essential oil submitted to enzymatic esterification

Brazilian Journal of Biology, 2021
The essential oil of citronella (Cymbopogon winterianus) has several biological activities, among them the insect repellent action. Some studies showed that cinnamic acid esters can be applied as natural pesticides, insecticides and fungicides.
R. L. Cansian, A. Staudt, J. L. Bernardi, B. M. S. Puton, D. Oliveira, J. V. de Oliveira, A. C. C. Gomes, B. C. O. P. Andrade, I. C. R. Leal, N. K. Simas, J. Zeni, A. Jungues, R. M. Dallago, G. T. Backes, N. Paroul   +14 more
doaj   +1 more source