Synthesis and Emission Properties of Poly(Diphenylacetylene)s with Electron-Donating and Electron-Withdrawing Groups
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چکیده
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Synthesis and crystal structures of lanthanide 4-benzyloxy benzoates: influence of electron-withdrawing and electron-donating groups on luminescent properties.
Three new 4-benzyloxy benzoic acid derivatives [4-benzyloxy benzoic acid = HL1; 3-methoxy-4-benzyloxy benzoic acid = HL2; 3-nitro-4-benzyloxy benzoic acid = HL3] have been employed as ligands for the support of six lanthanide coordination compounds [Tb(3+) = 1-3; Eu(3+) = 4-6] with the aim of testing the influence of electron releasing (-OMe) or electron withdrawing (-NO(2)) substituents on the...
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Bicyclo[2.2.2]octadiene-fused (BCOD-fused) bis(benzoborondipyrromethene)s (bisbenzoBODIPYs) bearing electron-withdrawing groups such as fluorine and cyano groups were prepared either by incorporating tetrafluoroisoindole moieties into BODIPY chromophores or by introducing cyano or ethoxycarbonyl groups at the 3,5-positions. The BCOD-fused bisbenzoBODIPYs were quantitatively converted to the cor...
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چکیده ندارد.
15 صفحه اولApplication of Chan-Lam cross coupling for the synthesis of N-heterocyclic carbene precursors bearing strong electron donating or withdrawing groups
Chan-Lam cross coupling allowed efficient synthesis of N,N'-disubstituted ortho-phenylene diamines bearing strong electron donating or withdrawing groups, such as nitro or methoxy groups, with moderate to high yields. These diamines can then be turned into N-heterocyclic carbene precursors after condensation with trimethyl orthoformate. The same strategy can also be utilized for the synthesis o...
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ژورنال
عنوان ژورنال: KOBUNSHI RONBUNSHU
سال: 2016
ISSN: 0386-2186,1881-5685
DOI: 10.1295/koron.2016-0002