2476-68-8Relevant articles and documents
One-Pot Synthesis of 9-Aminomethylanthracene
Glowacka, Paulina C.,Stephenson, G. Richard
, p. 1733 - 1737 (2016)
A novel method for the preparation of 9-aminomethylanthracene has been developed by the use of ammonium salts in the reductive amination of the 9-formyl anthracene derivative, a reaction which has been examined with a variety of reducing agents, ammonium ion sources, and solvents. The optimized reaction conditions allowed the isolation of the fluorophore in good yields.
Cu2 fluorescent sensor based on mesoporous silica nanosphere
Lu, Deli,Lei, Juying,Tian, Zhidan,Wang, Lingzhi,Zhang, Jinlong
, p. 239 - 246 (2012)
Monodisperse mesoporous silica nanosphere (MSN) modified with anthracene derivative, 2-(3-(triethoxysilyl) propylamino)-N-(9-anthryl methyl) acetamide (SGAAn) has been fabricated as a fluorescent sensor (SGAAn-MSN) for the detection of metal ions, which shows an exclusive selectivity to Cu2. Compared with SGAAn, SGAAn-MSN presents a higher sensitivity to Cu2. The loading amount of SGAAn in MSN has a great influence on the detection sensitivity of SGAAn-MSN, which varies with the local concentration and accessibility of SGAAn in the pore channel of MSN. Interference studies indicate that the addition of other metal ions such as Ag+, Cd2 and Pb2 has a negligible effect on the selectivity of SGAAn-MSN to Cu2. The possible mechanism for the sensing behavior of SGAAn-MSN to Cu2 is proposed based on the relation between fluorescence quench degree and Cu2 concentration.
A ratiometric fluorescent chemodosimeter with selective recognition for sulfite in aqueous solution
Sun, Yimin,Zhong, Cheng,Gong, Rui,Mu, Honglei,Fu, Enqin
, p. 7943 - 7946 (2009)
(Chemical Equation Presented) A fluorescent chemodosimeter containing a guanidiniocarbonylpyrrole and a 9-(aminomethyl)anthracene moiety has been synthesized. The sensor exhibits ratiometric fluorescence changes for SO 32- over other anions in 90% water/DMSO. The interesting ratiometric fluorescent changes for SO32- are attributed to the fluorescence resonance energy transfer (FRET) and the SO3 2- complex induced photochemical reaction. 2009 American Chemical Society.
A Phosphoramidite Analogue of Cyclotriphosphate Enables Iterative Polyphosphorylations
Singh, Jyoti,Steck, Nicole,De, Debaditya,Hofer, Alexandre,Ripp, Alexander,Captain, Ilya,Keller, Manfred,Wender, Paul A.,Bhandari, Rashna,Jessen, Henning J.
, p. 3928 - 3933 (2019/02/20)
An iterative polyphosphorylation approach is described, which is based on a phosphoramidite (P-amidite) derived reagent (c-PyPA) obtained from the cyclization of pyrophosphate with a reactive diisopropylaminodichlorophosphine. This type of reagent is unprecedented as it represents a reactive P-amidite without protecting groups. The reagent proved to be stable in solution over several weeks. Its utility is described in the context of iterative monodirectional and bidirectional polyphosphorylations. The ensuing functionalized cyclotriphosphate can be opened with a variety of nucleophiles providing ready access to diverse functionalized polyphosphate chains of defined length with several tags, including both P-N and P-O labels. Their interaction with exo- and endopolyphosphatases is described.
Reductive Amination by Photoredox Catalysis and Polarity-Matched Hydrogen Atom Transfer
Guo, Xingwei,Wenger, Oliver S.
supporting information, p. 2469 - 2473 (2018/01/27)
The excitation of a RuII photosensitizer in the presence of ascorbic acid leads to the reduction of iminium ions to electron-rich α-aminoalkyl radical intermediates, which are rapidly converted into reductive amination products by thiol-mediated hydrogen atom transfer (HAT). As a result, the reductive amination of carbonyl compounds with amines by photoredox catalysis proceeds in good to excellent yields and with broad substrate scope and good functional group tolerance. The three key features of this work are 1) the rapid interception of electron-rich α-aminoalkyl radical intermediates by polarity-matched HAT in a photoredox reaction, 2) the method of reductive amination by photoredox catalysis itself, and 3) the application of this new method for temporally and spatially controlled reactions on a solid support, as demonstrated by the attachment of a fluorescent dye on an activated cellulose support by photoredox-catalyzed reductive amination.