Palladium-Catalyzed C(sp<sup>2</sup>)–N Bond Cross-Coupling with Triaryl Phosphates
作者:Zicong Chen、Xiangmeng Chen、Chau Ming So
DOI:10.1021/acs.joc.9b00703
日期:2019.5.17
The first general palladium-catalyzed amination of aryl phosphates is described. The combination of MorDalPhos with [Pd(π-cinnamyl)Cl]2 enables the amination of electron-rich, electron-neutral, and electron-poor aryl phosphates with a board range of aromatic, aliphatic, and heterocyclic amines. Common functional groups such as ether, keto, ester, and nitrile show an excellent compatibility in this
Nickel-Catalyzed Amination of Aryl Phosphates through Cleaving Aryl C–O Bonds
作者:Jin-Hua Huang、Lian-Ming Yang
DOI:10.1021/ol201437g
日期:2011.7.15
amination of triaryl phosphates was achieved using a Ni(II)–(σ-Aryl) complex/NHC catalyst system in dioxane at 110 °C in the presence of NaH as base. Electron-neutral, -rich, and -deficient triaryl phosphates were coupled with a wider range of amine partners including cyclic and acyclic secondary amines, aliphatic primary amines, and anilines in good to excellent yields.
MICROWAVE-ASSISTED SYNTHESIS OF TRIARYL PHOSPHATES
作者:A. D. Sagar、N. A. Shinde、B. P. Bandgar
DOI:10.1080/00304940009355923
日期:2000.6
Patented procedures are also available in the literaturei ‘’ for the synthesis of triarylphosphates. Some of the reported methods have limitations such as (i) drastic reaction conditions,? (ii) liberation of hydrogen chloride which may cause corrosion problems in industrial reactors, (iii) tedious work-up, and (iv) long reaction times. In certain cases, pyridine or dialkylanilines have been used to neutralize
BENZOXAZOLE AND BENZOTHIAZOLE COMPOUNDS AND METHODS THEREFOR
申请人:Chauhan Yogendrasinh Bharatsinh
公开号:US20080081913A1
公开(公告)日:2008-04-03
A compound of Formula (I):
wherein R
1
is selected from the group consisting of an aliphatic functionality having 2 to 12 carbons, an aromatic functionality having 3 to 20 carbons, and a cycloaliphatic functionality having 3 to 20 carbons; with the proviso that R
1
is not —C
6
H
5
or —NH—C
10
H
7
; R
2
and R
3
are independently selected from the group consisting of a hydroxyl group, a halogen atom, an aliphatic functionality having 2 to 12 carbons, an aromatic functionality having 3 to 20 carbons, and a cycloaliphatic functionality having 3 to 20 carbons; X is either an oxygen atom or a sulfur atom; “n” has a value of 0 to 4; and “m” has a value of 0 to 3.
methylphosphonate underwent intramolecular (4+4) photocycloaddition between two anthryl groups. The fluorescence spectra of the naphthyl derivatives had two emission bands ascribed to an intramolecular excimer and a monomer, but the fluorescence spectra of the anthryl derivatives had only a monomer emission band. These photoluminescence behaviors are closely related to the reactivities of the compounds.