A new technique for anchoring homogeneous catalysts

Augustine, Robert L.; Tanielyan, Setrak K.; Anderson, Sharolyn; Yang, Hong

doi:10.1039/a903205c

Cited by 146 publications

(98 citation statements)

References 5 publications

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“…[35] If heteropolyacids are anchored on as ilica support, immobilization can take place through an oncovalent interaction between the cationic rhodium(I) complex and the heteropolyacids (Figure 2c). [36] The immobilization can take place simultaneously through severald ifferent noncovalent interactions (Figure 2a-c) by proper selection and matching of the ligand with as upport. Covalently bondedr hodium siloxide complexes could also be formed (Figure 2d).…”

Section: Resultsmentioning

confidence: 99%

Single Site Supported Cationic Rhodium(I) Complexes for the Selective Redox Isomerization of Allylic Alcohols

et al. 2012

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The isomerization of allylic alcohols to carbonyl compounds by a heterogeneous rhodium complex is reported. Different silica material supports and catalyst/ligand systems were evaluated. The most efficient catalyst in terms of catalytic activity and stability was found to be a cationic rhodium(I) complex with sulfonated phosphine ligands anchored on a mesoporous aluminosilica AlSBA‐15. The heterogeneous complex catalyzed the isomerization of a variety of allylic alcohols in excellent yields with very low catalyst loadings (0.5 mol %). The catalyst could be recycled without significant loss of activity or selectivity. The optimized catalyst was characterized by N2 sorption, powder X‐ray diffraction, transmission electron microscopy, as well as solution and solid‐state nuclear magnetic resonance, and Fourier Transform infrared spectroscopies.

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Section: Resultsmentioning

confidence: 99%

Single Site Supported Cationic Rhodium(I) Complexes for the Selective Redox Isomerization of Allylic Alcohols

et al. 2012

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“…In this context, immobilization of metal complexes by means of ion exchange has been reported by Augustine et al [126] in 1999. In their study, polytungstic acid was used as anchor to affix a metal-containing catalytic complex onto a support material.…”

Section: Noncovalently Bound Metal Complexesmentioning

confidence: 99%

An Overview of Zeolite, Zeotype and Mesoporous Solids Chemistry: Design, Synthesis and Catalytic Properties

Maschmeyer

Water

2006

Catalysts for Fine Chemical Synthesis

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“…Anchoring of the complex was achieved by a method developed by Augustine [6,7]. We have applied the method with a slight modification [12].…”

Section: Preparation Of the Catalystsmentioning

confidence: 99%

“…The effect of substituents of immobilized Rh complexes on the asymmetric hydrogenation of acetophenone derivatives using a heteropoly acid as an anchoring agent [6,7]. The method involves two steps, first the HPA anchored onto the support and after the metal complex from alcoholic solution.…”

Section: Introductionmentioning

confidence: 99%

The effect of substituents of immobilized Rh complexes on the asymmetric hydrogenation of acetophenone derivatives

et al. 2008

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A new technique for anchoring homogeneous catalysts

Cited by 146 publications

References 5 publications

Single Site Supported Cationic Rhodium(I) Complexes for the Selective Redox Isomerization of Allylic Alcohols

Single Site Supported Cationic Rhodium(I) Complexes for the Selective Redox Isomerization of Allylic Alcohols

An Overview of Zeolite, Zeotype and Mesoporous Solids Chemistry: Design, Synthesis and Catalytic Properties

The effect of substituents of immobilized Rh complexes on the asymmetric hydrogenation of acetophenone derivatives

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