Results 81 to 90 of about 39,482 (297)

Synthesis, Chemistry and Applications of 5-Hydroxymethyl-furfural And Its Derivatives [PDF]

open access: yes, 2001
The prospect of exciting research activity in the chemistry of furfural derived compounds such as 5-hydroxymethylfurfural (HMF), 2,5-furandicarbaldehyde and 2,5-furan-dicarboxylic acid prompted the writing of this article.
Lewkowski, Jarosław
core   +1 more source

Radikale Kaskadenreaktion, welche die Kreuzkupplung von Olefinen mit der Smiles‐Truce‐Umlagerung kombiniert

open access: yesAngewandte Chemie, EarlyView.
Wir stellen eine kobaltkatalysierte Radikalkaskade vor, die zwei Alken Ausgangsstoffe effizient miteinander verbindet und so in einem einzigen Schritt mehrere Bindungen aufbaut. Der Prozess beginnt mit einem kobaltkatalysierten Wasserstoffatomtransfer an eine Styrol‐Doppelbindung, gefolgt von einer Giese‐Addition.
Jingyang Qin   +3 more
wiley   +1 more source

Synthesis and Characterization of Furans and Levulinates Polymers: Derived from Cellulosic Carbohydrates via Aldol Condensation

open access: yesE3S Web of Conferences, 2018
Aldol condensation between furans and levulinates shows a selective route for the polymers production. In this work, the influences of mole ratio between furans and levulinates as well as substrate species on the formation of polymers structure were ...
Tan Jin   +3 more
doaj   +1 more source

A screening method for ranking chemicals by their fate and behaviour in the environment and potential toxic effects in humans following non-occupational exposure [PDF]

open access: yes, 2004
A large number of chemicals are released intentionally or unintentionally into the environment each year. These include thousands of substances that are currently listed worldwide and several hundred new substances added annually (Mücke et al., 1986 ...
Capelton, A   +2 more
core  

Sampling and analyses of polychlorinated dibenzo dioxins (PCDDs) and polychlorinated dibenzo furans (PCDFs) emissions in South Africa: A practitioner’s guide

open access: yesClean Air Journal, 2016
Dioxins and furans are toxic chemicals. A draft report released for public comment in September 1994 by the US Environmental Protection Agency clearly describes dioxin as a serious public health threat.
D.L. Posthumus, G.B. Woollatt
doaj   +1 more source

Gold(I)-catalyzed formation of furans from γ-acyloxyalkynyl ketones

open access: yesBeilstein Journal of Organic Chemistry, 2013
Various γ-acyloxyalkynyl ketones were efficiently converted into highly substituted furans with 2.5 mol % of triflimide (triphenylphosphine)gold(I) as a catalyst in dichloroethane at 70 °C.
Marie Hoffmann   +4 more
doaj   +1 more source

Furanic Rigid Foams, Furanic-Based Bioplastics and Furanic-Derived Wood Adhesives and Bioadhesives

open access: yes, 2022
In this chapter, we discuss pure furanic foams and tannin-furanic foams as fire-resistant, environmentally friendly, rigid biofoams. We also examine furanic wood adhesives in which a major furan portion is coupled with either synthetics or bioadhesives.
Antonio, Pizzi,, Anish, Khan,
openaire   +3 more sources

Primary investigation into the occurrence of Hydroxymethylfurfural (HMF) in a range of smoked products [PDF]

open access: yes, 2018
5-hydroxymethylfurfural (HMF) is produced in foods through many different pathways. Recently, studies have revealed its potential mutagenic and carcinogenic properties.
Bouzalakou-Butel, Laura-Artemis   +3 more
core   +2 more sources

Recent advances in photocatalytic hydrogen peroxide production

open access: yesPhotoMat, EarlyView., 2023
We classify the representative photocatalytic materials for photosynthesis of hydrogen peroxide (H2O2) in recent years and discuss the related modification methods in detail, providing inspiration and insights for the future design of photocatalysts for H2O2 production.
Jinyu Yan   +4 more
wiley   +1 more source

A Diels–Alder probe for discovery of natural products containing furan moieties

open access: yesBeilstein Journal of Organic Chemistry
Natural products (NPs) are fantastic sources of inspiration for novel pharmaceuticals, oftentimes showing unique bioactivity against interesting targets.
Alyssa S. Eggly   +5 more
doaj   +1 more source

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