Topic
Reagent
About: Reagent is a research topic. Over the lifetime, 60091 publications have been published within this topic receiving 1234928 citations. The topic is also known as: reagens.
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TL;DR: In this article, 1,2-bis[3-(1,3-dioxan-2-one-5-yl)-propylthio]ethane (B6CC) and B5CC with 4,9dioxadioxadodecane-1,12-diamine were carried out.
Abstract: Polyadditions of 1,2-bis[3-(1,3-dioxan-2-one-5-yl)-propylthio]ethane (B6CC) and 1,2-bis[4-(1,3-dioxolan-2-one-4-yl)-butylthio]ethane (B5CC) with 4,9-dioxadodecane-1,12-diamine were carried out. The reactivity of B6CC with the diamine was higher than that of B5CC. Additionally, B6CC gave a higher molecular weight polymer than B5CC. The reaction-rate constants of B6CC and B5CC at 30, 50, and 70 °C were evaluated as 0.70, 0.89, and 1.07 L/mol · h; and 0.03, 0.06, and 0.10 L/mol · h in N,N-dimethylacetamide (initial reagent concentration 0.5 M), respectively. The activation energies were estimated to be 9.2 and 24.9 kJ/mol in the reactions of B6CC and B5CC with the diamine, respectively. © 2001 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 39: 860–867, 2001
146 citations
TL;DR: Treatment of beta-keto phosphonates with N-fluorobenzenesulfonimide as electrophilic fluorinating reagent and diethyl azodicarboxylate as Electrophilic amination reagent under mild reaction conditions afforded the corresponding alpha-substituted beta- keto phosphate in moderate to excellent yields with excellent enantiomeric excesses.
145 citations
145 citations
Patent•
06 Apr 1996
TL;DR: In this paper, a sensor is provided for the measurement of a content of a material in liquid which material is oxidized with an oxidase enzyme in which sensor a reagent layer is formed on an electrode system composed of a measuring electrode and a counter electrode both of which are formed on a substrate.
Abstract: There is provided a sensor for the measurement of a content of a material in liquid which material is oxidized with an oxidase enzyme in which sensor a reagent layer is formed on an electrode system composed of a measuring electrode and a counter electrode both of which are formed on an insulating substrate, the reagent layer is composed of a hydrophilic polymer layer comprising a hydrophilic polymer and a reactive layer comprising the oxidase enzyme and an electron carrier, and the reagent layer further comprises a phosphate.
145 citations
TL;DR: The scaled-up experiments further indicated the practicality of this protocol and showed the pH value of the system plays a key role in achieving highly selective cleavage of the C-S bond instead of a S-S Bond in the transformation.
Abstract: A novel reagent, which introduces two sulfur atoms in one step, was designed and used for the construction of diverse disulfanes by copper-catalyzed oxidative cross-coupling under mild reaction conditions. By applying this stable and readily prepared reagent, late-stage modification of pharmaceuticals and natural products can be achieved straightforward. The scaled-up experiments further indicated the practicality of this protocol. The pH value of the system plays a key role in achieving highly selective cleavage of the C−S bond instead of a S−S bond in the transformation.
145 citations