On A Safe and Practical Method for The Preparation of β-Keto Phosphonates1
摘要:
Acylations of the magnesium enolate derivatives of trimethyl and triethylphosphonoacetates, using a magnesium chloride-triethylamine system, lead to 2-acylphosphonoacetates which are decarbalkoxylated to give beta-keto phosphonates.
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.
Highly Tunable 4-Phosphoryl Pyrazolone Receptors for Selective Rare-Earth Separation
作者:Jianfeng Zhang、Marco Wenzel、Kathleen Schnaars、Felix Hennersdorf、Leonard F. Lindoy、Jan J. Weigand
DOI:10.1021/acs.inorgchem.2c04221
日期:2023.2.20
influence of ligand structure and lipophilicity on lanthanidebinding and selectivity was systematically investigated via n-octanol/water distribution and liquid–liquid extraction (LLE) studies. Corresponding stoichiometry relationships between solid and solution states were well established using slope analyses. The results provide new insights into some fundamental lanthanide coordination chemistry