Ligand‐free Palladium‐Catalyzed Carbonylative Suzuki Coupling of Aryl Iodides in Aqueous CH
<sub>3</sub>
CN with Sub‐stoichiometric Amount of Mo(CO)
<sub>6</sub>
as CO Source
作者:Nan Sun、Qingxia Sun、Wei Zhao、Liqun Jin、Baoxiang Hu、Zhenlu Shen、Xinquan Hu
DOI:10.1002/adsc.201900011
日期:2019.4.23
established based on the palladium‐catalyzed carbonylative Suzuki coupling approach with sub‐stoichiometric Mo(CO)6 as CO source. Using 0.5 mol% of Pd(TFA)2 as catalyst, 0.5 equivalent of Mo(CO)6 as solid carbonyl reagent and 3 equivalent of K3PO4 as base, a wide range of functionalized (hetero)aryl iodides and (hetero)aryl boronic acids could smoothly proceed the carbonylative cross‐coupling reaction in aqueous
基于亚化学计量的Mo(CO)6作为CO源的钯催化羰基化Suzuki偶联方法,已经建立了一种合成二芳基和杂二芳基酮的新方法。使用0.5摩尔%的Pd(TFA)2作为催化剂,0.5当量的Mo(CO)6作为固体羰基试剂和3当量的K 3 PO 4作为碱,各种官能化的(杂)芳基碘和(杂)芳基硼酸可以在50°C的CH 3 CN水溶液中平稳地进行羰基交叉偶联反应,从而提供相应的酮,收率非常好。新开发的方法易于在温和条件下高效地操作。
Binuclear Palladium Complex Immobilized on Mesoporous SBA-16: Efficient Heterogeneous Catalyst for the Carbonylative Suzuki Coupling Reaction of Aryl Iodides and Arylboronic Acids Using Cr(CO)6 as Carbonyl Source
作者:Mahsa Niakan、Zahra Asadi、Mohammad Emami
DOI:10.1007/s10562-019-03087-w
日期:2020.2
a binuclear palladiumcomplex immobilized on the organo-functionalized SBA-16 was prepared and structurally characterized by routine techniques. Characterizations indicated that the mesostructure of SBA-16 was maintained after the immobilization of palladiumcomplex. Then, the prepared nanomaterial was applied as a heterogeneous catalyst in the carbonylative Suzukicouplingreaction of aryl iodides
A Pd–Sn heterobimetallic catalyst for carbonylative Suzuki, Sonogashira and aminocarbonylation reactions using chloroform as a CO surrogate
作者:Anuradha Mohanty、Mukesh Kumar Nayak、Sujit Roy
DOI:10.1039/d3ob00676j
日期:——
heterobimetallic Pd–Sn catalyst for the carbonylative Suzuki coupling, aminocarbonylation reaction, and carbonylative Sonogashira coupling of aryl halides with boronic acids, amines, and aromatic alkynes leading to a three-component coupling reaction using in situ generated carbon monoxide. Under the optimized reaction conditions, a variety of bisaryl ketones, amides, and aromatic ynones have been synthesized
Selective 1,1- and 1,2-dibromination of phenylethanes by simply adjusting the reaction conditions has been developed. Mixtures of NaBr/NaBrO3/H2SO4 are employed as green brominationreagents, which can release Br2 or BrOH in situ as required without polluting the environment. Both the resulting 1,1- and 1,2-dibromoethyl arenes can be easily transformed to phenylacetylenes via elimination under basic
通过简单地调整反应条件,已经开发出苯乙烷的选择性 1,1- 和 1,2-二溴化。采用NaBr/NaBrO 3 /H 2 SO 4混合物作为绿色溴化试剂,可根据需要原位释放Br 2或BrOH,不污染环境。所得的1,1-和1,2-二溴乙基芳烃都可以在碱性条件下通过消除轻松转化为苯乙炔,具有巨大的工业应用潜力。