Results 231 to 240 of about 44,738 (325)
Synthesis, 2017 The preparation of a 1,5-bifunctional organomagnesium alkoxide reagent by a deprotonation–magnesiation sequence is described. This reagent reacts with carboxylic acid esters to incorporate the carboxyl carbon atom of the ester into the newly formed ring.
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ACS Infectious Diseases, 2021
Due to the emergence of multidrug resistant bacteria, the development of new antibiotics is required. We introduce here asymmetrically modified positively charged bis(methylpyridinium) anthracenes as a novel tunable scaffold, in which the two positive ...
Xuan Wang +7 more
semanticscholar +1 more source
Due to the emergence of multidrug resistant bacteria, the development of new antibiotics is required. We introduce here asymmetrically modified positively charged bis(methylpyridinium) anthracenes as a novel tunable scaffold, in which the two positive ...
Xuan Wang +7 more
semanticscholar +1 more source
Angewandte Chemie, 2020
A supramolecular photocatalysis via charge-transfer excitation of a host-guest complex was developed by use of the macrocyclic boronic ester [2+2]BTH-F containing highly electron-deficient difluorobenzothiadiazole moieties. In the presence of a catalytic
Tatsuhiro Uchikura +4 more
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A supramolecular photocatalysis via charge-transfer excitation of a host-guest complex was developed by use of the macrocyclic boronic ester [2+2]BTH-F containing highly electron-deficient difluorobenzothiadiazole moieties. In the presence of a catalytic
Tatsuhiro Uchikura +4 more
semanticscholar +1 more source
Dyes and Pigments, 2018
Two series of fluorine-containing fluorenyl anthracenes linked by a rigid sp3-hybridized carbon atom have been synthesized and characterized. The effect of a fluorine auxochrome at different positions in fluorene moiety on bulk properties, such as ...
Wen Wan, Jian Hao
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Two series of fluorine-containing fluorenyl anthracenes linked by a rigid sp3-hybridized carbon atom have been synthesized and characterized. The effect of a fluorine auxochrome at different positions in fluorene moiety on bulk properties, such as ...
Wen Wan, Jian Hao
exaly +2 more sources
Photoionization of anthracene and anthracene derivatives
Journal of Photochemistry and Photobiology A: Chemistry, 1999Anthracene (III) and the derivatives 9-methoxymethylanthracene (IV), 9-cyanoanthracene (V) and (E-3-phenyl-prop-2-ene-1-yl(anthracene-9-methyl)-ether) (I) were subjected to irradiation at inca347 nm in dilute deoxygenated acetonitrile solution at room temperature.
C. Zimmermann +4 more
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The Journal of Organic Chemistry, 2014
Fifteen substituted maleimide cycloadducts of anthracene derivatives were synthesized in one or two steps from available precursors in yields ranging from 32 to 63%. They differ in the nature of the group on the maleimide nitrogen atom and of the substituents on the anthracene platform.
Ek Raj, Thapaliya +2 more
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Fifteen substituted maleimide cycloadducts of anthracene derivatives were synthesized in one or two steps from available precursors in yields ranging from 32 to 63%. They differ in the nature of the group on the maleimide nitrogen atom and of the substituents on the anthracene platform.
Ek Raj, Thapaliya +2 more
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Diels–Alder reactions of anthracene, 9-substituted anthracenes and 9,10-disubstituted anthracenes
Tetrahedron, 2003AbstractFor Abstract see ChemInform Abstract in Full Text.
Atherton JCC, Jones S
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The quenching of anthracene triplets by ground-state anthracene
Chemical Physics Letters, 1983Abstract The first-order decay constant, k dt , of anthracene triplets, 3 A*, in benzene depends linearly on ground-state anthracene, 1 A, concentration: k dt = k dt o + k sq [ 1 A], where k dt o = 49 ± 12 s −1 and k sq = (3.19 ± 0.10) × 10 5 M −1 s −1 at 23°C.
Jack Saltiel +3 more
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Anthracene Carboxyimides and Their Dimers
Chemistry – A European Journal, 2008AbstractSoluble anthracenedicarboxyimides have been prepared and undergo a photodimerisation of the anthracene skeleton, which is important for their application as antitumour agents, such as azonafides. Reaction under strongly alkaline conditions causes CC coupling to form soluble dimeric fluorescent dyes with bathochromic absorption and fluorescence
Heinz, Langhals +2 more
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