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: An organozinc species RXZnCH 2 I generated by reacting Zn(CH 2I) 2 with RXH was found to be an efficient reagent for the cyclopropanation of olefins at room temperature as discussed by the authors.
140 citations
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TL;DR: A simple modification of the Dittmer-Lester reagent is described that allow the detection of phospholipid derivatives at very low concentrations on silica gel and reversed-phase thin-layer plates.
140 citations
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TL;DR: The technique of mixing two streams of reactant solutions in a reaction tube with down stream injection of a solution containing a quenching reagent has been used for studying the kinetics of fast reactions.
Abstract: The technique of mixing two streams of reactant solutions in a reaction tube with down stream injection of a solution containing a quenching reagent has been used for studying the kinetics of fast reactions. The method is ideal for a synthesis involving the formation of an intermediate species which (1) must be prepared under conditions such that its half-life is in the range between a millisecond and several seconds and (2) can be stabilized by rapid reaction with a quenching reagent. The method was verified by the successful use of this method for preparing solutions of two different compounds in high yield, sodium hydroxytrihydroborate and sodium peroxynitrite. The apparatus is described. 1 table.
140 citations
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140 citations
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07 Jun 1995
TL;DR: In this paper, an involatile reagent source liquid is flash-vaporized on a vaporization matrix structure (26) at elevated temperature, and a carrier gas mixture containing the flash vaporized source reagent is generated.
Abstract: A process and apparatus for delivering an involatile reagent in gaseous form, wherein an involatile reagent source liquid is flash-vaporized on a vaporization matrix structure (26) at elevated temperature. A carrier gas may be flowed past the flash vaporization matrix structure to yield a carrier gas mixture containing the flash vaporized source reagent. The vaporization matrix structure (26) preferably has a high surface-to-volume ratio, and may suitably comprise a foraminous matrix element such as screen mesh onto which the reagent source liquid is distributed for flash vaporization. The invention is particularly useful for delivery of Group II reagents and compounds and complexes of early transition metals such as zirconium and hafnium, and may be usefully employed with Group II beta-diketonate source layers, e.g., of YBaCuO, BiSrCaCuO, and TlBaCaCuO types, as well as for forming interlayers of Group II metal fluorides between superconductor or gallium arsenide overlayers, and for depositing thin films of photonic and ferroelectric materials, e.g., BaTiO3, BaxSr1-xNb2O6, and PbZr1-xTixO3.
140 citations