Rhodium-Catalyzed Oxidative C-H Activation/Cyclization for the Synthesis of Phosphaisocoumarins and Phosphorous 2-Pyrones
作者:Youngchul Park、Jungmin Seo、Sangjune Park、Eun Jeong Yoo、Phil Ho Lee
DOI:10.1002/chem.201302652
日期:2013.11.25
Rhodium‐catalyzed cyclization of phosphinic acids and phosphonic monoesters with alkynes has been developed. The oxidative annulation proceeds with complete conversion of phosphinic acid derivatives and allowed the atom‐economic preparation of useful phosphaisocoumarins with high yield and selectivity. The reaction is tolerant of extensive substitution on the phosphinic acid, phosphonic monoester and alkyne, including
Rhodium-catalyzed oxidative coupling through C–H activation and annulation directed by phosphonamide and phosphinamide groups
作者:Sangjune Park、Boram Seo、Seohyun Shin、Jeong-Yu Son、Phil Ho Lee
DOI:10.1039/c3cc44995e
日期:——
Rhodium-catalyzedoxidative coupling reactions via C-Hactivation and annulation directed by phosphonamide and phosphinamide groups were developed under aerobic conditions, which produced benzazaphosphole 1-oxides and phosphaisoquinolin-1-oxides.
Insertion of Arynes into P–O Bonds: One-Step Simultaneous Construction of C–P and C–O Bonds
作者:Na Qi、Ning Zhang、Srinivasa Rao Allu、Jiangsheng Gao、Jian Guo、Yun He
DOI:10.1021/acs.orglett.6b03283
日期:2016.12.2
The insertion of arynes into P–O bonds for the preparation of o-hydroxy-substituted arylphosphine oxides, -phosphinates, and -phosphonates is described. This novel reaction leads to the simultaneous formation of C–P and C–O bonds in one step with good yields and regioselectivities under mild and transition-metal-free conditions. The easy follow-up transformations of the resulting o-hydroxyl group extend
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.