(2R,3S,4S,5R)-2,5-bis(hydroxymethyl)oxolane-2,3,4-triol/D(-)-Fructose/D-Fructose/β-d-Fructose/D-(-)-Fructose/Levulose/Fructose [JAN]/Fructose, D-/(3S,4R,5R)-1,3,4,5,6-Pentahydroxy-2-hexanon/(3S,4R,5R)-1,3,4,5,6-Pentahydroxyhexan-2-one/Levugen/Fruit sugar/beta-D-fructofuranose/D-(-)-levulose/Fructose (JP15/USP)/b-D-Fructose/DSSTox_CID_3081/fructose powder/arabino-2-Hexulose/1,3,4,5,6-pentahydroxyl-2-hexanone/D-Levulose/(3S,4R,5R)-1,3,4,5,6-Pentahydroxy-2-hexanone/Frutabs/δ-Fructose/Fructooligosaccharides/Fructose/β-δ-fructose/keto-D-fructose/D-fructofuranose/β-Fruit sugar/D-arabino-Hexulose/Furucton/β-D-arabino-Hexulose/β-Levulose/keto D-fructose/Laevosan/Laevoral/Fructose, furanose form/Fructosteril
551.7±50.0 °C at 760 mmHg
119-122 °C (dec.)(lit.)
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provides coniferyl ferulate(CAS#:57-48-7) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate
Monosaccharides, such as d-glucose and d-fructose, exist in aqueous solution as an equilibrium mixture of cyclic isomers and can be detected with boronic acids by the reversible formation of boronate esters. The engineering of accurate, discriminating and continuous monitoring devices relies on knowledge of which cyclic isomer of a sugar binds to a boronic acid receptor. Herein, by monitoring fluctuations in ionic current, we show that an engineered α-hemolysin (αHL) nanopore modified with a boronic acid reacts reversibly with d-glucose as the pyranose isomer (α-d-glucopyranose) and d-fructose as either the furanose (β-d-fructofuranose) or the pyranose (β-d-fructopyranose). Both of these binding modes contradict current binding models. With this knowledge, we distinguished the individual sugars in a mixture of d-maltose, d-glucose, and d-fructose.
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
boronic acid; nanoreactors; single-molecule methods; sugar detection; α-hemolysin
Single-Molecule Determination of the Isomers of d-Glucose and d-Fructose that Bind to Boronic Acids.
Ramsay WJ1, Bayley H1.
2018 Mar 5
Magnetic sensing at microwave frequencies for real-time monitoring of sucrose, sorbitol, d-glucose and d-fructose concentrations is reported. The sensing element was designed based on a coplanar waveguide (CPW) loaded with a split ring resonator (SRR), which was fabricated on a DiClad 880 substrate with a thickness of 1.6mm and relative permittivity (εr) of 2.2. The magnetic sensor was connected to a Vector Network Analyzer (VNA) and the electromagnetic interaction between the samples and sensor was analyzed. The magnitude of the transmission coefficient (S21) was used as an indicator to detect the solution sample concentrations ranging from 0.04 to 0.20g/ml. The experimental results confirmed that the developed system using microwaves for the real-time monitoring of sucrose, sorbitol, d-glucose and d-fructose concentrations gave unique results for each solution type and concentration. Moreover, the proposed sensor has a wide dynamic range, high linearity, fast operation and low-cost.
Copyright © 2017 Elsevier Ltd. All rights reserved.
Electromagnetic sensors; Real-time measurement; Sorbitol; Sucrose; d-fructose; d-glucose
Real-time monitoring of sucrose, sorbitol, d-glucose and d-fructose concentration by electromagnetic sensing.
Harnsoongnoen S1, Wanthong A2.
2017 Oct 1
The strained epoxide ring of oxirane-derived furanoside and pyranoside of d-fructose are regioselectively opened by various primary and secondary amines as well as azide to yield C4-alkylamino-C4-deoxy and the corresponding azido derivatives. The epoxide ring of a furanoside derived from l-sorbose, a C-5 epimer of d-fructose also afforded C4-amino and C4-azido analogues. All three epoxides generated piperazine linked disaccharides. These epoxides are also easily opened by p-tolylthiol to access thiosugars. One such thiosugar was converted to vinylsulfone-modified fructofuranoside and subjected to nucleophillic addition. A suitably designed vinyl sulfone-modified fructofuranoside having a leaving group at C-6, act as an efficient substrate for MIRC (Michael Initiated Ring Closure) reactions to construct cyclopropane skeleton in d-fructose. The strategy is general in nature and provides an easy access to cyclopropanated sugar derivatives. Thus, the easily accessible “spring loaded” epoxides of d-fructose and l-sorbose have been used as pivotal starting point for the synthesis of hitherto unknown modified carbohydrates.
Copyright © 2019 Elsevier Ltd. All rights reserved.
Aminosugar; Cyclopropane; Epoxide; Vinyl sulfone; d-fructose
Epoxides of d-fructose and l-sorbose: A convenient class of "click" functionality for the synthesis of a rare family of amino- and thio-sugars.
Das A1, Bhaumik A1, Pathak T2.
2019 Nov 9
D-Fructose (D(-)-Fructose) is a naturally occurring monosaccharide found in many plants.