Organophosphorus Chemistry without PCl<sub>3</sub>: A Bridge from Hypophosphorous Acid to H-Phosphonate Diesters
作者:Henry C. Fisher、Lucie Prost、Jean-Luc Montchamp
DOI:10.1002/ejoc.201301412
日期:2013.12
A process for the conversion of hypophosphorousacid (H3PO2, HPA) and alcohols into various H-phosphonatediesters [(RO)2P(O)H] is described. The new reaction provides a missing bridge between HPA and important H-phosphonates, completely avoiding the use of PCl3. Nickel chloride or nickel on silica catalyze the oxidative phosphorylation of alkyl phosphinates with various alcohols or water. The reaction
Manganese-Catalyzed and Mediated Synthesis of Arylphosphinates and Related Compounds
作者:Olivier Berger、Jean-Luc Montchamp
DOI:10.1021/acs.joc.9b01239
日期:2019.7.19
H-phosphinates and relatedcompounds was examined. A practical catalytic process with the air as the oxidant could not be found. However, an inexpensive and robust methodology was developed, using catalytic Mn(II) as the radical initiator and excess Mn(IV) as the stoichiometric oxidant. Using these conditions, the inter- and intramolecular arylation of phosphinylidene compounds has a broad scope, including
Electrochemical Aromatization of Dihydroazines: Effect of Chalcogenophosphoryl (CGP) Substituents on Anodic Oxidation of 9-CGP-9,10-dihydroacridine
作者:Alexander V. Shchepochkin、Oleg N. Chupakhin、Nadezhda S. Demina、Maxim A. Averkov、Tatyana Yu. Shimanovskaya、Pavel A. Slepukhin、Pavel A. Volkov、Anton A. Telezhkin、Boris A. Trofimov、Valery N. Charushin
DOI:10.1055/a-1521-3166
日期:2021.10
The effect of chalcogenophosphoryl fragments on the anodic oxidation of 9-chalcogenophosphoryl-9,10-dihydroacridines was studied in detail. The data of X-ray structural analyses, quantum chemical calculations, and cyclic voltammetry measurements obtained for these compounds provide an explanation of the observed features. The direct electrochemical phosphorylation of acridine was first carried out
详细研究了硫族磷酰基片段对 9-硫族磷酰基-9,10-二氢吖啶阳极氧化的影响。为这些化合物获得的 X 射线结构分析、量子化学计算和循环伏安测量数据提供了对观察到的特征的解释。吖啶的直接电化学磷酸化首次成功进行。
Direct Synthesis of Dialkylphosphites from White Phosphorus
hazardous and corrosive PCl3, are the fundamental reactive starting materials used in organophosphorus chemistry. Here, a KBr-mediated synthesis of DAPIs involving P4, alcohols and water is presented. With the use of silica gel as the catalyst, oxone as the safe oxidant, industrially important (EtO)2P(O)H, (i-PrO)2P(O)H and (MeO)2P(O)H are prepared in 70–90% yields. Furthermore, rare metal extractant bis(2-ethylhexyl)