Results 101 to 110 of about 5,414 (199)

Selective C3- or C5-Borylation of furfural derivatives: Enabling the synthesis of tri- and tetra-substituted furan Analogues

open access: yesTetrahedron Chem
A strategy of C3/C4 and C5/C4 bis-C–H functionalization of furfural and 5-hydroxymethylfurfural is presented. This task has been accomplished by the initial iridium-catalyzed C–H borylation of furfural, equipped with an appropriate imine function ...
Alessia Mori   +4 more
doaj   +1 more source

Yeast strains from coconut toddy in Sri Lanka show high tolerance to inhibitors derived from the hydrolysis of lignocellulosic materials

open access: yesBiotechnology & Biotechnological Equipment, 2019
We previously isolated 18 Saccharomyces cerevisiae strains from coconut toddy in Sri Lanka. All the 18 strains (SLY-1 to SLY-18) could grow aerobically up to 18 mmol L−1 vanillin in yeast extract–peptone–dextrose (YPD) medium, and the SLY-10 strain ...
Maduka Subodinee Ahangangoda Arachchige   +2 more
doaj   +1 more source

Enantioselective Total Synthesis of (+)-Salvileucalin B [PDF]

open access: yes, 2011
An enantioselective total synthesis of the diterpenoid natural product (+)-salvileucalin B is reported. Key findings include a copper-catalyzed arene cyclopropanation reaction to provide the unusual norcaradiene core and a reversible retro ...
Levin, Sergiy   +2 more
core   +1 more source

Associative Learning of an Odor to a Sugar-meal by Anopheles gambiae (Diptera: Culicidae) [PDF]

open access: yes, 2010
The abilities of many insects to learn have been well documented. However, a limited number of studies have been conducted to determine associative learning capabilities in medically important insects. To date, no studies of this sort have been carried
Seger, Krystal
core  

PURIFICATION OF HARDWOOD-DERIVED AUTOHYDROLYSATES

open access: yesBioResources, 2012
Carbohydrate-containing hydrolysates (1.1 to 14.9% of wood dry matter) obtained from autohydrolysis (at 130 to 150°C for 30 to 120 minutes) of birch (Betula pendula) chips prior to pulping were purified with respect to non-carbohydrate materials, without
Joni Tapani Lehto,, Raimo Juhani Alén
doaj  

Extraction of Rare Earth Elements from Organic Acid Leachate Using Formo-Phenolic-like Resins

open access: yesRecycling
Formo-phenolic-like resins were synthesized by replacing phenol with phloroglucinol, a biobased and biocompatible compound, and using different aldehydes, such as biomass-derived furaldehyde and glyoxal.
Evan Lelong   +4 more
doaj   +1 more source

Silica Optical Fibers Connected via a Micro MIP-Core Waveguide to Build Optical-Chemical Sensors

open access: yesChemosensors
Molecularly imprinted polymers (MIPs) can be combined with optical fibers (OFs) to create various sensor configurations, yielding low-cost and highly sensitive extrinsic and intrinsic sensors.
Rosalba Pitruzzella   +11 more
doaj   +1 more source

Splitter-Based Sensors Realized via POFs Coupled by a Micro-Trench Filled with a Molecularly Imprinted Polymer

open access: yesSensors
An optical–chemical sensor based on two modified plastic optical fibers (POFs) and a molecularly imprinted polymer (MIP) is realized and tested for the detection of 2-furaldehyde (2-FAL).
Ines Tavoletta   +10 more
doaj   +1 more source

Chemical Conversion of the Oil Palm Wastes [PDF]

open access: yes, 1988
The production of a 2-furaldehyde (furfural) from mesocarp fibre waste and oil palm sludge from a palm oil mill using protic acids was investigated. The effect of immersion of fibre in acid prior to heating was also studied.
Hassan, Abdul Jalil   +3 more
core  

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