1,6-HEXANEBISPHOSPHONIC ACID - CAS 4721-22-6

1,6-HEXANEBISPHOSPHONIC ACID (CAS# 4721-22-6) is used as an hydrophobic crosslinking agent.

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Molecular Formula
C6H16O6P2
Molecular Weight
246.14

1,6-HEXANEBISPHOSPHONIC ACID

    • Specification
      • Purity
        98 %
        Application
        This molecule is used as an hydrophobic crosslinking agent.
        Storage
        Please store the product under the recommended conditions in the Certificate of Analysis.
        Shipping
        Room temperature in continental US; may vary elsewhere.
        IUPAC Name
        6-phosphonohexylphosphonic acid
        Synonyms
        1,6-HEXANEBISPHOSPHONIC ACID; 1,6-HEXYLENEBISPHOSPHONIC ACID; 1,6-Hexylenebisphosphonic acid, 98 %
    • Properties
      • InChI Key
        WDYVUKGVKRZQNM-UHFFFAOYSA-N
        InChI
        InChI=1S/C6H16O6P2/c7-13(8,9)5-3-1-2-4-6-14(10,11)12/h1-6H2,(H2,7,8,9)(H2,10,11,12)
        Canonical SMILES
        C(CCCP(=O)(O)O)CCP(=O)(O)O
    • Reference Reading
      • 1. Complexation of UVI with 1-hydroxyethane-1,1-diphosphonic acid in acidic to basic solutions
        Wendy A Reed, Linfeng Rao, PierLuigi Zanonato, Alexander Yu Garnov, Brian A Powell, Kenneth L Nash Inorg Chem. 2007 Apr 2;46(7):2870-6.doi: 10.1021/ic0621401.Epub 2007 Mar 7.
        Complexation of UVI with 1-hydroxyethane-1,1-diphosphonic acid (HEDPA) in acidic to basic solutions has been studied with multiple techniques. A number of 1:1 (UO2H3L), 1:2 (UO2HjL2 where j = +4, +3, +2, +1, 0, and -1), and 2:2 [(UO2)2HjL2 where j = +1, 0, and -1] complexes form, but the 1:2 complexes are the major species in a wide pH range. Thermodynamic parameters (formation constants and enthalpy and entropy of complexation) were determined by potentiometry and calorimetry. Data indicate that the complexation of UVI with HEDPA is exothermic, favored by the enthalpy of complexation. This is in contrast to the complexation of UVI with dicarboxylic acids in which the enthalpy term usually is unfavorable. Results from electrospray ionization mass spectrometry and 31P NMR have confirmed the presence of 1:1, 1:2, and 2:2 UVIHEDPA complexes.
        2. Atroposelective Synthesis of 1,1'-Bipyrroles Bearing a Chiral N-N Axis: Chiral Phosphoric Acid Catalysis with Lewis Acid Induced Enantiodivergence
        Yaru Gao, Luo-Yu Wang, Tao Zhang, Bin-Miao Yang, Yu Zhao Angew Chem Int Ed Engl. 2022 Apr 11;61(16):e202200371.doi: 10.1002/anie.202200371.Epub 2022 Feb 24.
        We present herein a highly efficient atroposelective synthesis of axially chiral 1,1'-bipyrroles bearing an N-N linkage from simple hydrazine and 1,4-diones. Further product derivatizations led to axially chiral bifunctional compounds with high potential in asymmetric catalysis. For this chrial phosphoric acid (CPA)-catalyzed double Paal-Knorr reaction, an intriguing Fe(OTf)3 -induced enantiodivergence was also observed.
        3. Acid-catalyzed reductive amination of aldoses with 8-aminopyrene-1,3,6-trisulfonate
        R A Evangelista, A Guttman, F T Chen Electrophoresis. 1996 Feb;17(2):347-51.doi: 10.1002/elps.1150170210.
        The reductive amination of monosaccharides with 8-aminopyrene-1,3,6-trisulfonate (APTS) in seven different organic acids including the commonly used acetic acid was investigated by capillary electrophoresis (CE) with laser-induced fluorescence (LIF) detection. The correlation between the yields of the saccharide-APTS adducts and pKa of the organic acid catalyst is consistent with general acid catalysis of the rate-determining step of the reductive amination reaction. Derivatization in the presence of organic acids of higher strength than acetic acid produced substantially higher yields of APTS-sugar adducts, an effect which is more pronounced for N-acetylamino sugars. Optimum yields were obtained using citric acid as a catalyst. Conversion of a few nanomoles of neutral saccharides to the APTS derivatives is achieved at 75 degrees C in less than 60 min.
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It is commonly abbreviated as: C1V1 = C2V2

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