Reactions of cupric halides with organic compounds—III
作者:D. Mosnaim、D.C. Nonhebel、J.A. Russell
DOI:10.1016/s0040-4020(01)82883-0
日期:1969.1
9-Alkyl and 9-arylanthracenes have been shown to undergo halogenation with cupric halides to give good yields of their 10-halogenated derivatives. Electron-donating groups in 9-arylanthracenes were shown to increase the rate of reaction. The results are interpreted in terms of a ligand-transfer mechanism.
Halogenations of Anthracenes and Dibenz[<i>a,c</i>]anthracene with <i>N</i>-Bromosuccinimide and <i>N</i>-Chlorosuccinimide<sup>1</sup>
作者:Shaoming Duan、Jeff Turk、Joseph Speigle、Jean Corbin、John Masnovi、Ronald J. Baker
DOI:10.1021/jo991495h
日期:2000.5.1
exclusively 9-(bromomethyl)anthracene with NBS in the absence of iodine, but mainly (67%) 9-bromo-10-methylanthracene in the presence of iodine. Chlorination of 3 with NCS in the presence of HCl also affords mostly (65%) nuclear halogenation. Nuclear bromination of anthracene, 9-methylanthracene, and dibenz[a, c]anthracene by NBS in the absence of added HBr is accelerated by iodine. This effect is
作者:Ingo Koehne、Artur Lik、Miriam Gerstel、Clemens Bruhn、Johann Peter Reithmaier、Mohamed Benyoucef、Rudolf Pietschnig
DOI:10.1039/d0dt03047c
日期:——
A series of phosphonateester supported lanthanide complexes bearing functionalities for subsequent immobilisation on semi-conductor surfaces have been prepared. Six phosphonateester ligands (L1-L6) with varying aromatic residues were synthesised. Subsequent complexation with lanthanide chloride or -nitrate precursors (Ln = La, Nd, Dy, Er) afforded the corresponding mono- or dimeric lanthanide model
pH-Induced Fluorescence Quenching of Anthracene-Labeled Poly(2-vinylpyridine)
作者:John H. Clements、S. E. Webber
DOI:10.1021/ma035749j
日期:2004.2.1
The fluorescence intensity of mid- or end-tagged anthracene-labeledpoly(2-vinylpyridine) in acidic aqueous solution is very dependent on the degree of protonation (α). In the absence of protonation (e.g., in methanol solution) there is no appreciable intrapolymer fluorescencequenching. We presume that the quenching is the result of electron transfer from the excited anthracene to neighboring pyridinium
Reactions of copper(II) halides with organic compounds. Part VI. Reactions of 9-alkyl- and 9-aryl-10-halogenoanthracenes
作者:A. D. Mosnaim、D. C. Nonhebel
DOI:10.1039/j39700000942
日期:——
9-Alkyl (and aryl)-10-halogenoanthracenes react with copper(II) halides to give products in which the alkyl (or aryl) group or the halogen is replaced by halogen from the copper(II) halide. When the alkyl group is methyl, the 9-halogeno-10-halogenomethylanthracene is also obtained. Products arising from halogen exchange between the copper(II) halide and the halogenomethyl group were also obtained. These