Electrochemical phosphorylation of arenols and anilines leading to organophosphates and phosphoramidates
作者:Zijian Zhong、Pan Xu、Aihua Zhou
DOI:10.1039/d1ob00779c
日期:——
A practical phosphorylation for generating organophosphates and phosphoramidates via electrochemical dehydrogenative cross-coupling of P(O)H compounds with arenols and anilines is disclosed. This method involves using inorganic iodide salts as both redox catalysts and electrolytes in an undivided cell without the addition of oxidants or bases. A preliminary mechanistic study suggests that radicals
Preparation of Allenephosphoramide and Its Utility in the Preparation of 4,9-Dihydro-2<i>H</i>-benzo[<i>f</i>]isoindoles
作者:Guangwei Yin、Yuanxun Zhu、Li Zhang、Ping Lu、Yanguang Wang
DOI:10.1021/ol102992n
日期:2011.3.4
Allenephosphoramides were prepared from propargyl alcohols and diethyl arylphosphoramides using Yb(OTf)3 as catalyst. In the presence of iodine, 4,9-dihydro-2H-benzo[f]isoindole derivatives could be efficiently constructed from the same two starting materials in a single step.
使用Yb(OTf)3作为催化剂,由炔丙醇和二乙基芳基磷酰胺制备烯丙基磷酰胺。在碘的存在下,可以在同一步骤中由相同的两种原料有效地构建4,9-二氢-2 H-苯并[ f ]异吲哚衍生物。
N,N-dihalophosphoramides—VII
作者:A. Zwierzak、S. Zawadzki
DOI:10.1016/0040-4020(73)80212-1
日期:1973.1
The formation of diethyl phosphoroanilidate when solutions of diethyl N,N-dibromophosphoroamidate (DBPA) in benzene are refluxed over zinc, is considered to be diagnostic for a nitrene intermediate.
Base-promoted direct amidation of esters: beyond the current scope and practical applications
作者:Ivaylo Slavchev、Jas. S. Ward、Kari Rissanen、Georgi M. Dobrikov、Svilen Simeonov
DOI:10.1039/d2ra03524c
日期:——
the full potential of this transformation is yet to be revealed by broadening the substrate scope. In a search for new practical applications of the amidationreaction, herein we present a comprehensive study of a number of base-promoted direct amidations that encompass a wide range of amines and esters. Furthermore, we applied our findings in the synthesis of phosphoramidates and several industrially