3858-23-9Relevant academic research and scientific papers
Synthesis of Cyclic Phosphinates by Microwave-Assisted Ionic-Liquid-Promoted Alcoholysis
Drahos, László,Harsági, Nikoletta,Keglevich, Gy?rgy,Kiss, Nóra Zsuzsa
, (2021/06/21)
A series of 1-alkoxy-3-methyl- and 3,4-dimethyl-3-phospholene 1-oxides, as well as 1-alkoxy-3-methylphospholane 1-oxides were prepared in good yields by the microwave (MW)-assisted [bmim][PF 6]-catalyzed transesterification of the corresponding methyl or ethyl esters. The alcoholyses studied represent another case, where MW irradiation has had a crucial role on the course of the reaction. The method developed is an alternative possibility to other esterifications starting from the corresponding phosphinic chlorides and acids.
Esterification of five-membered cyclic phosphinic acids under mild conditions using propylphosphonic anhydride (T3P)
Jablonkai, Erzsébet,Milen, Mátyás,Drahos, László,Keglevich, Gy?rgy
, p. 5873 - 5875 (2013/10/21)
1-Hydroxy-phospholene 1-oxides (1 and 3) and 1-hydroxy-phospholane oxides (5 and 7) undergo fast and efficient esterification with a series of alcohols, at room temperature, in the presence of 1.1 equiv of propylphosphonic anhydride (T3P).
