A simple synthesis of 1-aminophosphonic acids from 1-hydroxyiminophosphonates with NaBH4 in the presence of transition metal compounds
摘要:
A new procedure has been developed for the synthesis of 1-aminophosphonic acids. Diethyl phosphonates are converted to hydroxyiminophosphonates when treated with hydroxylamine hydrochloride. Reduction of hydroxyiminophosphonates with NaBH4 in MeOH in the presence of MoO3 or NiCl2 and hydrolysis of 1- aminophosphonates gave 1-aminophosphonic acids in good yield.
A simple synthesis of 1-aminophosphonic acids from 1-hydroxyiminophosphonates with NaBH4 in the presence of transition metal compounds
摘要:
A new procedure has been developed for the synthesis of 1-aminophosphonic acids. Diethyl phosphonates are converted to hydroxyiminophosphonates when treated with hydroxylamine hydrochloride. Reduction of hydroxyiminophosphonates with NaBH4 in MeOH in the presence of MoO3 or NiCl2 and hydrolysis of 1- aminophosphonates gave 1-aminophosphonic acids in good yield.
Surface-Mediated Solid Phase Reactions: A Simple and New Method for the Synthesis of<i>α</i>-Aminophosphonates under Solvent-Free Conditions
作者:Babak Kaboudin
DOI:10.1246/cl.2001.880
日期:2001.9
Alumina-supported ammonium formate was found to be an efficient reagent for the synthesis of 1-aminophosphonates from aldehydes and diethyl phosphite. This method is an easy, rapid and high-yieldin...
Microwave-assisted synthesis of 1-aminoalkyl phosphonates under solvent-free conditions
作者:Babak Kaboudin、Rahman Nazari
DOI:10.1016/s0040-4039(01)01627-6
日期:2001.11
simple, efficient and general method has been developed for the synthesis of 1-aminoalkyl phosphonates through a one-pot reaction of aldehydes with amines in the presence of acidic aluminaundersolvent-free conditions using microwave irradiation. It was also found that acidic aluminasupportedammonium formate undersolvent-free conditions is capable of the synthesis of 1-aminophosphonates from aldehydes
Rational Design of Potent Inhibitors of a Metallohydrolase Using a Fragment‐Based Approach
作者:Daniel Feder、Siti H. Mohd‐Pahmi、Waleed M. Hussein、Luke W. Guddat、Ross P. McGeary、Gerhard Schenk
DOI:10.1002/cmdc.202100486
日期:2021.11.5
mammalian PAP with bound fragment molecules inspired scaffolds for inhibitor design. Three novel scaffolds of phosphonate inhibitors were designed and docked to pig and human PAPs. The most potent inhibitor within this series has a Ki value of 300 nM against pig PAP. Additional noncovalent scaffolds provide avenues for the design of PAP inhibitors with novel modes of action.
人紫色酸性磷酸酶(PAP) 与骨质疏松症有关。具有结合片段分子的哺乳动物 PAP 的高分辨率晶体结构启发了用于抑制剂设计的支架。设计了三种新型膦酸盐抑制剂支架并将其与猪和人类 PAP 对接。该系列中最有效的抑制剂对猪 PAP 的K i值为 300 nM。额外的非共价支架为设计具有新作用模式的 PAP 抑制剂提供了途径。
One-pot synthesis of primary 1-aminophosphonates: Coupling reaction of carbonyl compounds, hexamethyldisilazane, and diethyl phosphite catalyzed by Al(OTf)<sub>3</sub>
One-Pot Synthesis of α-Aminophosphonates on Silica under Solvent-Free Conditions from Aromatic Aldehydes
作者:Ming Shu Wu、Xiang Zhu Zhang
DOI:10.3184/030823408x349998
日期:2008.10
α-Aminophosphonates were synthesised under solvent-free conditions on an acidic silica gel support using aromaticaldehydes, diethyl phosphite and anhydrous ammonium acetate as starting materials in moderate yields