19403-92-0Relevant articles and documents
Isostructural polymorphs of triiodophloroglucinol and triiodoresorcinol
Nath, Naba K.,Saha, Binoy K.,Nangia, Ashwini
, p. 1693 - 1701 (2008)
Triiodoresorcinol (TIR, 2,4,6-triiodoresorcinol) and triiodophloroglucinol (TIG, 2,4,6-triiodophloroglucinol) crystallized as orthorhombic (TIR-O and TIG-O in P212121) and monoclinic (TIR-M and TIG-M in P21/n) p
Iodination of phenols and anilines with bis(sym-collidine)iodine(I) hexafluorophosphate
Brunel, Yves,Rousseau, Gerard
, p. 8217 - 8220 (1995)
Iodination of a wide range of phenols and anilines was achieved by the action of the title reagent in methylene chloride.
Synthesis, characterization, X-ray structural analysis, and iodination ability of benzyl(triphenyl)phosphonium dichloroiodate
Imanieh, Hossein,Ghammamy, Shahriar,Nikje, Mir Mohammad Alavi,Hosseini, Farhang,Aghbolagh, Zahra Shokri,Fun, Hoong-Kun,Khavasi, Hamid Reza,Kia, Reza
experimental part, p. 2248 - 2255 (2012/01/12)
Benzyl(triphenyl)phosphonium dichloroiodate (BTPPICl2), BnPh3P+(ICl2)-, is easily synthesized in a nearly quantitative yield by the addition of BnPh 3P+Cl- to a CH2Cl2 solution of iodine monochloride (ICl). BnPh3P+Cl - can be prepared by the reaction of Ph3P and BnCl. The compound was characterized by physicochemical and spectroscopic methods (elemental analysis, FT-IR, and 1H-NMR). The use of phosphonium counterion improves the quality of the BTPPICl2 crystals. BTPPICl2 crystallizes in the monoclinic system, and its crystal and molecular structure has been determined at 100(1) K by X-ray diffraction. The structure was solved by the direct method and had refined R value of 0.0637 for 699 reflections (I>2σ(I)), space group P21/n with a=12.4700(3), b=13.2196(3), c=14.4580(3) A, β=102.6340(10)°, V=2325.67(9) A3, and Z=4. The I-atom is coordinated by two Cl-atoms as ligands in a linear geometry. This compound is a versatile reagent for the efficient and selective iodination of organic substrates, in particular of aromatic phenols to the corresponding iodo compounds, under mild conditions. To assess the generality of method, a wide variety of phenols with electron-donating and electron-withdrawing substituents were studied. BTPPICl2 is a mild iodination reagent, which offers a new avenue for an expeditious iodination of phenols. The inexpensive, relatively non-toxic reagent, and mild conditions are the positive features of the procedure and reagent. Copyright
Iodination of anilines and phenols with 18-crown-6 supported ICl 2-
Mbatia, Hannah W.,Ulloa, Olbelina A.,Kennedy, Daniel P.,Incarvito, Christopher D.,Burdette, Shawn C.
experimental part, p. 2987 - 2991 (2011/06/16)
A highly crystalline iodinating reagent, {[K·18-C-6]ICl 2}n, was synthesized in high yield (93%). The trihalide is supported by an 18-crown-6 macrocycle and forms a coordination polymer in the solid state. This reagent iodinates anilines and phenols efficiently under mild conditions. Controlled mono-iodination with anilines was easily achieved while poly-iodination was observed with phenols.
Mild and efficient iodination of aromatic and heterocyclic compounds with the NaClO2/NaI/HCl system
Lista, Liliana,Pezzella, Alessandro,Napolitano, Alessandra,d'Ischia, Marco
, p. 234 - 239 (2008/09/16)
NaClO2/NaI in the presence of HCl is a mild, cheap, and non-toxic reagent for the iodination of phenols, including estradiol and naphthol, aromatic amines, and heterocyclic substrates, e.g., indoles, 8-hydroxyquinoline, imidazole, in fair to excellent yields by a very simple isolation protocol. The scope of the procedure is exemplified by the first iodination of 5-nitroindole to 3-iodo-5-nitroindole in 75% yield.
The dynamic covalent chemistry of mono- and bifunctional boroxoaromatics
Greig, Lyndsey M.,Slawin, Alexandra M.Z.,Smith, Melanja H.,Philp, Douglas
, p. 2391 - 2403 (2007/10/03)
10-Hydroxy-10,9-boroxophenanthrene reacts rapidly and reversibly with both benzylic and alkane diols in non-polar solvents. The formation of 2:1 adducts between the boroxoaromatic and the diols is favoured. The diol component of the adduct can be exchange
Compositions of iodophenyl esters and iodophenyl sulfonates in film-forming materials for visualization of the gastronintestinal tract
-
, (2008/06/13)
Disclosed are x-ray contrast compositions for oral or retrograde examination of the gastrointestinal tract comprising a polymeric material capable of forming a coating on the gastrointestinal tract and an x-ray producing agent of the formula STR1 and meth
Iodination of Phenols by Use of Benzyltrimethylammonium Dichloroiodate(1-)
Kajigaeshi, Shoji,Kakinami, Takaaki,Yamasaki, Hiromichi,Fujisaki, Shizuo,Kondo, Manabu,Okamoto, Tsuyoshi
, p. 2109 - 2112 (2007/10/02)
The reaction of phenols with benzyltrimethylammonium dichloroiodate(1-) in dichloromethane-methanol in the presence of CaCO3 or NaHCO3 for several hours at room temperature gave iodophenols in good yields.