Amide as a protecting group in phosphate ester synthesis. Part I. The acid hydrolysis of some phosphoramidic diesters
作者:J. A. Stock、W. J. Hopwood、P. D. Regan
DOI:10.1039/j39660000637
日期:——
The acid hydrolysis of a series of N-substituted diphenyl and di-n-butyl phosphoramidates has been studied. The N-methyl compounds were the most readily hydrolysed; in refluxing 25% aqueous formic acid, specific cleavage of the P–N bond was complete in a few minutes.
facile and efficient approach to phosphoramidates was developed via amination of phosphorylazides. A variety of phosphoramidates were obtained in one step with good to excellent yields under a mild reaction system. The process uses easily available amines as a N source and offers a new opportunity for P–N bond formation.
When phosphoryl azide meets mechanochemistry: clean, rapid, and efficient synthesis of phosphoryl amides under B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub> catalysis in a ball mill
作者:Lin-Yu Jiao、Xin-Hua Peng、Ze-Lin Wang、Nan Jia、Zhuo Li
DOI:10.1039/d1cy01314a
日期:——
We described herein the first example associated with B(C6F5)3-catalyzed preparation of phosphoryl amides under mechanochemical conditions. In this novel system, the combination of energetic reagents with an energetic mechanochemical process enabled the reaction to proceed under very mild conditions and accelerated the desired nucleophilic attack on the phosphorus center.
我们在本文中描述了与在机械化学条件下B(C 6 F 5 ) 3催化制备磷酰胺相关的第一个实例。在这个新系统中,高能试剂与高能机械化学过程的结合使反应能够在非常温和的条件下进行,并加速所需的对磷中心的亲核攻击。
Substitution of diarylphosphoryl azides with aliphatic amines catalyzed by simple rare‐earth metal salts: Efficient and novel preparation of phosphoryl amides
A novel and high efficient protocol was disclosed herein for the rare-earth metal salt-catalyzed substitution of phosphorylazides with amines. In this homogeneous catalysis system, different diarylphosphoryl azides and aliphatic and aromatic amines were evaluated under the optimized reaction conditions, and a series of phosphoryl amides were generated through LaCl3 catalysis for the first time in