Chemoselective Transfer Hydrogenation of α,β-Unsaturated Carbonyls Using Palladium Immobilized Ionic Liquid Catalyst
作者:Nilesh M. Patil、Takehiko Sasaki、Bhalchandra M. Bhanage
DOI:10.1007/s10562-014-1362-x
日期:2014.11
chemoselective transfer hydrogenation of α,β-unsaturated carbonyls using immobilized palladium metal-containing ionic liquid as a versatile heterogeneous catalyst with an excellent conversion and chemoselectivity (up to 100 %). The influence of various reaction parameters such as the effect of hydrogen donor, solvent, temperature, and time were studied. The catalyst was recycled for four consecutive cycles without
New nitrite ionic liquid (IL-ONO) and nanoparticles of organosilane-based nitrite ionic liquid immobilized on silica as nitrosonium sources for electrophilic aromatic nitrosation
作者:Hassan Valizadeh、Mohammad Amiri、Ashkan Shomali
DOI:10.1016/j.crci.2011.09.012
日期:2011.12
improved method for the synthesis of nitrosoarenes has been developed using a new nitriteionicliquid (IL-ONO) and immobilized nitriteionicliquid. These ionicliquids play as nitrosoniumsources for electrophilic aromatic nitrosation of active aromatics at 0–5 °C. Their action was accomplished in water and the satisfactory results were obtained under the mildconditions in short reaction time.
摘要 利用新型亚硝酸离子液体 (IL-ONO) 和固定化亚硝酸离子液体开发了一种合成亚硝基芳烃的改进方法。这些离子液体在 0–5 °C 下作为活性芳烃的亲电芳族亚硝化的亚硝基源。它们的作用是在水中完成的,在温和的条件下,在很短的反应时间内获得了令人满意的结果。
Ruthenium complex immobilized on supported ionic-liquid-phase (SILP) for alkoxycarbonylation of olefins with CO<sub>2</sub>
In this study, the heterogeneously catalyzed alkoxycarbonylation of olefins with CO2 based on a supported ionic-liquid-phase (SILP) strategy is reported for the first time. An [Ru]@SILP catalyst was accessed by immobilization of ruthenium complex on a SILP, wherein imidazolium chloride was chemically integrated at the surface or in the channels of the silica gel support. An active Ru site was generated
N-Heterocyclic carbene palladium complex supported on ionic liquid-modified SBA-16: an efficient and highly recyclable catalyst for the Suzuki and Heck reactions
作者:Hengquan Yang、Xiaojing Han、Guang Li、Yunwei Wang
DOI:10.1039/b904136b
日期:——
an N-heterocyclic carbene palladium complex and ionic liquid on the mesoporous cage-like material SBA-16, an efficient and highly recyclable heterogeneous catalyst for the Suzuki and Heckreactions was prepared. This catalyst afforded a fast conversion of the unactivated bromobenzene at a catalyst loading of 0.01 mol%, and a good yield was still achieved after the catalyst was reused ten times. Its
Efficient, recyclable and phosphine-free carbonylative Suzuki coupling reaction using immobilized palladium ion-containing ionic liquid: synthesis of aryl ketones and heteroaryl ketones
作者:Mayur V. Khedkar、Takehiko Sasaki、Bhalchandra M. Bhanage
DOI:10.1039/c3ra40730f
日期:——
The carbonylativeSuzukicouplingreaction of aryl and heteroaryliodides was studied by using immobilized palladium ion-containing ionic liquid (ImmPd-IL). The protocol was optimized with respect to various reaction parameters, applied to a wide variety of substituted aryl/heteroaryliodides and various aryl/heteroaryl boronic acids with different steric and electronic properties, and afforded the