Phenylphosphonic acid derivative and production process therefor
申请人:Nissan Chemical Industries, Ltd.
公开号:US05880309A1
公开(公告)日:1999-03-09
A dialkyl dialkoxycarbonylphenylphosphonate which is useful as a resin modifier, a process for producing the same in high yield at a low cost, and a process for producing a dicarboxyphenylphosphonic acid in high yield at a low cost are described. The process for producing a dialkyl dialkoxycarbonylphenylphosphonate comprises heating and reacting a dialkoxycarbonylphenyl halide with a trialkyl phosphate in the presence of a catalyst comprising an element of group VIII of the periodic table (such as an alumina supported palladium catalyst) and hydrolyzing the obtained dialkyl dialkoxycarbonylphenylphosphonate in the presence of an acid or base to produce a dicarboxyphenylphosphonic acid.
Guest Molecule-Responsive Functional Calcium Phosphonate Frameworks for Tuned Proton Conductivity
作者:Montse Bazaga-García、Rosario M. P. Colodrero、Maria Papadaki、Piotr Garczarek、Jerzy Zoń、Pascual Olivera-Pastor、Enrique R. Losilla、Laura León-Reina、Miguel A. G. Aranda、Duane Choquesillo-Lazarte、Konstantinos D. Demadis、Aurelio Cabeza
DOI:10.1021/ja500356z
日期:2014.4.16
interconversions together with proton conductivity) of an open-framework hybrid that combines Ca(2+) ions and the rigid polyfunctional ligand 5-(dihydroxyphosphoryl)isophthalic acid (PiPhtA). Ca2[(HO3PC6H3COOH)2]2[(HO3PC6H3(COO)2H)(H2O)2]·5H2O (Ca-PiPhtA-I) is obtained by slow crystallization at ambient conditions from acidic (pH ≈ 3) aqueous solutions. It possesses a high water content (both Ca coordinated
我们报告了结合 Ca(2+) 离子和刚性多功能配体 5-(dihydroxyphosphoryl) 间苯二甲酸 (PiPhtA) 的开放框架混合的合成、结构表征和功能(框架互变与质子电导率)。Ca2[(HO3PC6H3COOH)2]2[(HO3PC6H3(COO)2H)(H2O)2]·5H2O (Ca-PiPhtA-I) 是通过在环境条件下从酸性 (pH ≈ 3) 水溶液中缓慢结晶获得的。它具有高含水量(Ca 配位和晶格中),重要的是,它表现出充满水的一维通道。在 75 °C 时,Ca-PiPhtA-I 部分脱水并显示出晶体衍射图,可以在参数接近原始相的单斜晶胞中进行索引。对加热至 75 °C 的样品进行 Rietveld 精修,Ca-PiPhtA-II,使用同步加速器粉末 X 射线衍射数据,揭示了分子式 Ca2[(HO3PC6H3COOH)2]2[(HO3PC6H3(COO)2H)(H2O)2]。“父”Ca-PiPhtA-I