Direct, oxidative halogenation of diaryl- or dialkylphosphine oxides with (dihaloiodo)arenes
作者:Jasmin Eljo、Graham K. Murphy
DOI:10.1016/j.tetlet.2018.06.044
日期:2018.8
The oxidative halogenation of diaryl- or dialkylphosphine oxides with the hypervalent iodine reagents (difluoroiodo)toluene (p-TolIF2, 1) and (dichloroiodo)benzene (PhICl2, 2) is reported. Phosphoric fluorides could be recovered in 32–75% yield, or they could be trapped with EtOH to give the corresponding phosphinate in typically good yield. Phosphoric chlorides were not readily isolable, and were
Ruthenium-Catalyzed C–H Activation/Cyclization for the Synthesis of Phosphaisocoumarins
作者:Youngchul Park、Incheol Jeon、Seohyun Shin、Jiae Min、Phil Ho Lee
DOI:10.1021/jo401608v
日期:2013.10.18
ruthenium-catalyzed oxidative cyclization of phosphonic acidmonoesters or phosphinic acids with alkynes has been developed for the synthesis of a wide range of phosphaisocoumarins in good to excellent yields under aerobic conditions. A multitude of arylphosphonic acidmonoesters and arylphosphinic acids having electron-donating and -withdrawing groups were oxidatively cyclized. Various diarylacetylenes
Copper-catalyzed oxidative cross-dehydrogenative coupling (CDC) reaction of alcohols with secondary phosphine oxides
作者:Yingxiang Hua、Yanchao Lin、Wenyi Chen、Liyi Ye、Yingwu Yin、Yuxing Gao、Song Tu
DOI:10.1016/j.tetlet.2022.153822
日期:2022.6
A copper-catalyzedoxidative cross-dehydrogenative coupling (CDC) strategy of secondary phosphine oxides and alcohols for the synthesis of various phosphinate esters was proposed. Under the mild reaction conditions (CuCl2·2H2O/K2S2O8, at room temperature for 3–12 h under air), a variety of substrates were well-tolerated and afforded the desirable compounds in moderate to excellent yields.
提出了一种铜催化氧化交叉脱氢偶联 (CDC) 策略的仲氧化膦和醇,用于合成各种次膦酸酯。在温和的反应条件下(CuCl 2 ·2H 2 O/K 2 S 2 O 8,在室温下,空气中反应 3-12 h),多种底物具有良好的耐受性,并以中等至优异的产率提供了所需的化合物.
Synthesis of Aromatic Phosphonic Acids and Their Derivatives. I. The Derivatives of Benzene, Toluene and Chlorobenzenes