Rh(I)-Catalyzed Arylation of <i>α</i>
-Diazo Phosphonates with Aryl Boronic Acids: Synthesis of Diarylmethylphosphonates
作者:Yujing Zhou、Yan Zhang、Jianbo Wang
DOI:10.1002/cjoc.201600487
日期:2017.5
diarylmethylphosphonates is presented. A series of phosphonate derivatives with diverse functional groups can be accessed via a rhodium catalyzed cross‐coupling reaction between α‐diazo phosphonates and arylboronicacids. Migratory insertion of rhodium carbene intermediates is postulated to be the critical step in this transformation.
Synthesis of Quaternary<i>α</i>-Hydroxy Phosphonates<i>via</i>Direct Hydroxylation of Phosphonate Compounds
作者:Jiyan Liu、Wei Wang、Rui Wang、Lijun Gu
DOI:10.1002/cjoc.201400858
日期:2015.5
It was found for the first time that Cs2CO3 serves as highly efficient catalyst for the direct hydroxylation reactions of phosphonates under mild conditions. This reaction provides an efficient approach to quaternary α‐hydroxy phosphonates, which possess intriguing biological activities and are widely used in many areas.
首次发现在温和条件下,Cs 2 CO 3可以用作膦酸酯直接羟基化反应的高效催化剂。该反应提供了一种有效的方法来处理季铵化的α-羟基膦酸酯,其具有令人着迷的生物学活性,并在许多领域得到了广泛的应用。
A New One-Pot Synthesis of Dialkyl Phosphonates from Diazo Compounds and Dialkyl Hydrogen Phosphites
作者:Alexander M. Polozov、Nina A. Polezhaeva、Albert H. Mustaphin、Alexander V. Khotinen、Boris A. Arbuzov
DOI:10.1055/s-1990-26924
日期:——
Bis(acetylacetonato)copper(II) is an effective catalyst for the preparation of dialkyl phosphonates from diazo compounds and dialkyl hydrogen phosphites. This method complements the classical ones and makes 2-dialkoxyphosphoryl-1,3-dicarbonyl compounds available.
[EN] NOVEL POTASSIUM CHANNEL MODULATORS<br/>[FR] NOUVEAUX MODULATEURS DES CANAUX POTASSIUM
申请人:POSEIDON PHARMACEUTICALS AS
公开号:WO2005003143A1
公开(公告)日:2005-01-13
This invention relates to novel compounds useful as potassium channel modulators. More specifically the invention provides chemical compounds useful as modulators of SKca and/or IKca channels.
Phosphonate additives for non-aqueous electrolyte in alkali metal electrochemical cells
申请人:WILSON GREATBATCH LTD.
公开号:EP0917224A1
公开(公告)日:1999-05-19
An alkali metal, solid cathode, nonaqueous electrochemical cell capable of delivering high current pulses, rapidly recovering its open circuit voltage and having high current capacity, is described. The stated benefits are realized by the addition of at least one phosphonate additive to an electrolyte comprising an alkali metal salt dissolved in a mixture of a low viscosity solvent and a high permittivity solvent. A preferred solvent mixture includes propylene carbonate, dimethoxyethane and an alkyl phosphonate additive.