Results 51 to 60 of about 11,475 (180)

Nanocluster polyoxomolybdate, (NH4)12[Mo36(NO)4O108(H2O)16] as an efficient catalyst in olefins epoxidation [PDF]

شیمی کاربردی روز, 2016
In this project, epoxidation of olefins using nanocluster polyoxomolybdate, (NH4)12[Mo36(NO)4O108(H2O)16] in presence of  tert- butyl hydroperoxide (TBHP) were studied.
مجتبی امینی
doaj   +1 more source

Occurrence and Human Health Implications of Legacy Organochlorine Pesticides and Their Metabolites in Fruits and Vegetables of Bangladesh

Food Safety and Health, EarlyView.
Multiple OCP isomers and/or metabolites along with their parent compounds were detected in commonly consumed fruits and vegetables of Bangladesh, possibly attributed to both recently and historically applied OCPs. However, all the detected values were below 0.01 mg/kg, indicating no potential human health risks through dietary intake. ABSTRACT Globally,
Kazi Sanjana Adnen, Shamima Jahan Sweety, Sadia Shahana Tisha, Md. Mahbubul Hoque, Tanmoy Roy Tusher   +4 more
wiley   +1 more source

ROLE OF Mn(TPP)Cl IN THE EPOXIDATION WITH SINGLET OXYGEN [PDF]

Journal of Sciences, Islamic Republic of Iran, 2000
Mn(TPP)Cl catalyzes cooxidation of olefin in the singlet oxygenation of sulfid. Mn(TPP)Cl is able to transfer an oxygen atom from a peroxidic intermediate generated in singlet oxygenation of sulfide to a metal ion affording metal 0x0 species which is ...
doaj  

Surface decorated magnetite nanoparticles with birhodanine and MoO2Cl2(dmf)2 as a new magnetic catalyst for epoxidation of olefins [PDF]

Journal of Particle Science and Technology, 2019
In this work, the synthesis and characterization of a new magnetically supported Mo6+ complex have been reported as a catalyst for epoxidation of olefins. For this purpose, a new silylating compound containing a birhodanine moiety, i.e.
Arman Rahmaninia, Yagoub Mansoori, Farough Nasiri, Abolfazl Bezaatpour, Behnam Babaei   +4 more
doaj   +1 more source

Vegetable Oil‐Based Materials for Drug Delivery Systems and Wound Dressings

Macromolecular Bioscience, EarlyView.
Renewable resources like vegetable oils are increasingly explored for biomaterial production in biomedical applications. Their monoglycerides and triglycerides inherently possess functions or can be chemically modified to introduce functional groups suitable for polymerization, yielding biomaterials with desirable properties such as flexibility ...
Lucas M. Favre, Nicolas Masurier, Anne Aubert‐Pouëssel   +2 more
wiley   +1 more source

Chemoenzymatic Epoxidation of Alkenes and Reusability Study of the Phenylacetic Acid

The Scientific World Journal, 2014
Here, we focused on a simple enzymatic epoxidation of alkenes using lipase and phenylacetic acid. The immobilised Candida antarctica lipase B, Novozym 435 was used to catalyse the formation of peroxy acid instantly from hydrogen peroxide (H2O2) and ...
Emilia Abdulmalek, Mahashanon Arumugam, Hanis Nabillah Mizan, Mohd. Basyaruddin Abdul Rahman, Mahiran Basri, Abu Bakar Salleh   +5 more
doaj   +1 more source

Bio‐Based Epoxy Resins from Estragole: Achieving High Glass Transition Temperatures Comparable to DGEBA and Simultaneously Low Viscosities

Macromolecular Materials and Engineering, EarlyView.
Two novel bio‐based epoxy monomers, diglycidyl‐4‐allylphenol (DG‐4A) and triglycidyl‐diallylphenol (TG‐DA), derived from estragole (92% and 72% bio‐content), were synthesized and cured with isophorone diamin (IPDA) and 4,4´‐diaminodiphenyl sulfone (DDS). The resins show high Tgs, with DG‐4A reaching and TG‐DA exceeding DGEBA‐based systems. These resins
Florian Bauer, Elisabeth Schamel, Herbert Schlachter, Gerd Wehnert, Dominik Söthje   +4 more
wiley   +1 more source

Biobased Epoxidized Castor Oil Covalent Adaptable Networks Adhesives Reinforced with Recycled Carbon Fibers

Macromolecular Rapid Communications, EarlyView.
It is reported the design of biobased sustainable, smart, and functional adhesives achieved dispersing recycled carbon fibers into biobased epoxy monomer. ABSTRACT The development of sustainable, smart, and functional adhesives is crucial in advancing environmentally friendly materials.
Alberto Cellai, Rafael Turra Alarcon, Bernhard Sölle, Elisabeth Rossegger, Valentina Casalegno, Milena Salvo, Marco Sangermano   +6 more
wiley   +1 more source

Lipase-mediated epoxidation of alkenes in supercritical carbon dioxide

Green Chemistry Letters and Reviews, 2018
In this work, supercritical carbon dioxide was used as reaction media in the lipase-mediated epoxidation of alkenes for the first time. Under the optimal conditions (alkene (1 mmol), novozym 435 (15 mg), H2O2 (50% aqueous solution, 1.4 mmol), n-caprylic ...
Jiaxin Zhang, Wenwei Qian, Chunyu Wang, Ziyi Cao, Shanshan Chen, Liu Zhang, Yang Zhang, Lei Wang   +7 more
doaj   +1 more source

Formation of Tetrahydrofurano-, Aryltetralin, and Butyrolactone Norlignans through the Epoxidation of 9-Norlignans

Molecules, 2020
Epoxidation of the C=C double bond in unsaturated norlignans derived from hydroxymatairesinol was studied. The intermediate epoxides were formed in up to quantitative conversions and were readily further transformed into tetrahydrofuran, aryltetralin ...
Patrik A. Runeberg, Dominique Agustin, Patrik C. Eklund   +2 more
doaj   +1 more source