Efficient and Convenient One‐Pot Synthesis of Phosphoramidates and Phosphates
摘要:
A simple and efficient one-pot method is described for the synthesis of phosphoramidates/phosphates in excellent yields from dialkylphosphites and trichloroisocyanuric acid in acetonitrile and subsequent treatment with dialkyl amines/ alcohols. The procedure is operationally simple, has reduced reaction times, and uses a one-pot procedure.
An efficient method for the esterification of phosphonic and phosphoric acids using silica chloride
作者:Manisha Sathe、Arvind K. Gupta、M.P. Kaushik
DOI:10.1016/j.tetlet.2006.02.159
日期:2006.5
Silica chloride is used as an effective heterogeneous catalyst for the rapid esterification of alkyl/aryl phosphonic/phosphoric acids to their corresponding alkyl/aryl phosphonates/phosphates under mild conditions with quantitative yields.
<i>p</i>-Toluenesulfonic Acid–Celite as a Reagent for Synthesis of Esters of Alkylphosphonic Acids under Solvent-Free Conditions
作者:Arvind K. Gupta、Rajesh Kumar、Devendra K. Dubey、M.P. Kaushik
DOI:10.3184/030823407x218066
日期:2007.6
The coupling reaction of alkylphosphonic acids and alcohols on the surface of p-toluenesulfonic acid–Celite under mild and solvent-free conditions gave the corresponding phosphonates in excellent yields. This method provides a useful rapid synthesis of phosphonates for use in the unambiguous identification of chemical warfare agents.
New phosphorylating agents for general synthesis of mixed phosphate esters
作者:Tomohisa Nagamatsu、Takehisa Kunieda
DOI:10.1016/s0040-4039(00)96128-8
日期:——
effective procedure has been developed for the general synthesis of mixed alkyl or arylphosphate esters by metal-catalyzed phosphorylation of alcohols with aryl bis(2-oxo-3-oxazolinyl)phosphinate. Among metallic acetylacetonates examined as catalysts, the zirconium complex was the most effective as in activity order of Zr(IV)> Ce(III)> Zn(II)> Mn(III)> Mn(II)-complexes.
Zinc‐catalyzed transformation of diarylphosphoryl azides to diarylphosphate esters and amides
作者:Jun Ying、Qian Gao、Xiao‐Feng Wu
DOI:10.1002/asia.202000154
日期:2020.5.15
We have developed a facile and efficient procedure for the synthesis of diarylphosphate esters and amides. Using Zn(acac)2 as the catalyst, the reaction of diarylphosphoryl azides with aliphatic alcohols and phenols through an unusual P-N bond cleavage provided a number of diarylphosphate esters in good yields (22 examples, up to 94%). Additionally, various diarylphosphate amides were obtained from
[EN] NONAQUEOUS ELECTROLYTE COMPOSITIONS COMPRISING FLUORINATED SULFONES<br/>[FR] COMPOSITIONS D'ÉLECTROLYTE NON AQUEUSES COMPRENANT DES SULFONES FLUORÉS
申请人:DU PONT
公开号:WO2017209762A1
公开(公告)日:2017-12-07
Disclosed herein are electrolyte compositions comprising a fluorinated solvent, a fluorinated sulfone, at least one component selected from a borate salt, and/or an oxalate salt, and/or a fluorinated cyclic carbonate, and at least one electrolyte salt. The fluorinated solvent may be a fluorinated acyclic carboxylic acid ester, a fluorinated acyclic carbonate, a fluorinated acyclic ether, or combinations thereof. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.