Results 11 to 20 of about 5,020 (301)

Advancements in N-heterocyclic carbenes (NHCs) catalysis for benzoin reactions: A comprehensive review from past to present

Chimica Techno Acta, 2023
N-heterocyclic carbenes (NHCs) catalyze benzoin condensation, which is a unique carbon-carbon bond-forming reaction. It entails a coupling reaction between two aldehydes catalyzed by NHCs that produce a-hydroxycarbonyl compounds (acyloins).
Pakin Noppawan, Baramee Phungpis, Kanokkan Worawut   +2 more
doaj   +1 more source

Production and commercialization of benzoin resin: Exploring the value of benzoin resin for local livelihoods in North Sumatra, Indonesia

Trees, Forests and People, 2022
Non-timber forest products (NTFPs) are a source of income for local communities. This study aims to clarify the customary management system adopted in benzoin tree cultivation as well as analyze the significance of retaining customary management ...
Kazuhiro Harada, Wi Wiyono, Lariski Munthe   +2 more
doaj   +1 more source

Catalytic Oxidation of Benzoins by Hydrogen Peroxide on Nanosized HKUST-1: Influence of Substituents on the Reaction Rates and DFT Modeling of the Reaction Path

Molecules, 2023
In this research, the oxidation of a series of benzoins, R-C(=O)-CH(OH)-R, where R = phenyl, 4-methoxyphenyl, 4-bromophenyl, and 2-naphthyl, by hydrogen peroxide in the presence of nanostructured HKUST-1 (suspension in acetonitrile/water mixture) was ...
Darya V. Yurchenko, Anton S. Lytvynenko, Emir N. Abdullayev, Nina V. Peregon, Konstantin S. Gavrilenko, Alina O. Gorlova, Sergey V. Ryabukhin, Dmitriy M. Volochnyuk, Sergey V. Kolotilov   +8 more
doaj   +1 more source

Successful identification of the species of the semipetrified amber medicinal resin benzoin using molecular diagnostic technology

Scientific Reports, 2023
Benzoin is an incomplete lithified resin secreted from the trunk of the Styrax Linn. that is known as "semipetrified amber" and has been widely used in medicine due to its blood circulation-promoting and pain-relieving properties. However, the lack of an
Jian Feng, Qingqin He, Anzhen Xie, Yangyang Liu   +3 more
doaj   +1 more source

Cinnamic Acid in Frankincense Sap as a Criterion for Determining the Best Mother Plant for Vegetative Propagation of Styrax benzoin (Sumatra Benzoin) in Sumatra, Indonesia

International Journal of Forestry Research, 2022
Cinnamic acid, contained in frankincense sap produced by Styrax benzoin (Sumatra benzoin tree), is an important compound that is used for various purposes, such as preservatives, fragrances, cosmetics, and pharmaceutical products.
Isnaini Nurwahyuni, Benardo Nababan, Svencer Pangoloi, Manihar Situmorang   +3 more
doaj   +1 more source

Structural changes of polyethylene in blown films with different pro-oxidants

Polímeros, 2021
The accumulation of polymeric residues has been one of the most impacting environmental problems in recent human history, coming, above all, from disposable artefacts, such as plastic bags.
João Augusto Osório Brandão, Fernando Dal Pont Morisso, Edson Luiz Francisquetti, Ruth Marlene Campomanes Santana   +3 more
doaj   +1 more source

Benzoin Resin: An Overview on Its Production Process, Phytochemistry, Traditional Use and Quality Control

Plants, 2023
Benzoin is a pathologic exudation produced by plants of the family Styrax. It is secreted by traumatic resin ducts after injury, which are derived from parenchymal cells in secondary xylem by schizolysigeny.
Qingqin He, Yuanyuan Sun, Xiqin Chen, Jian Feng, Yangyang Liu   +4 more
doaj   +1 more source

Microbial Synthesis of (S)- and (R)-Benzoin in Enantioselective Desymmetrization and Deracemization Catalyzed by Aureobasidium pullulans Included in the Blossom Protect™ Agent

Molecules, 2021
In this study, we examined the Aureobasidium pullulans strains DSM 14940 and DSM 14941 included in the Blossom Protect™ agent to be used in the bioreduction reaction of a symmetrical dicarbonyl compound.
Renata Kołodziejska, Renata Studzińska, Agnieszka Tafelska-Kaczmarek, Hanna Pawluk, Dominika Mlicka, Alina Woźniak   +5 more
doaj   +1 more source

PENINGKATAN KUALITAS KEMENYAN DENGAN MENGGUNAKAN PELARUT ORGANIK

Jurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2017
This experiment is intended to improve the quality of the several types of benzoin by using an aceton solvent. The benzoin consisted of four samples with decreasing order of  quality: "mata kasar",   "mata halus", "jurur" and "abu".
Bambang Wiyono
doaj   +1 more source

Synthesis of 4-hydroxy and 6-hydroxyindoles: a renaissance of the Bischler reaction

Chimica Techno Acta, 2022
In the present work we studied a modified Bischler-Möhlau reaction – synthesis of indoles from benzoin and aniline. Our proposed modification of this method differs from that described earlier in that the reaction is carried out at a lower temperature ...
A. D. Sharapov, R. F. Fatykhov, I. A. Khalymbadzha, O. N. Chupakhin   +3 more
doaj   +1 more source