Pyrochlore/Al2O3 composites supported Pd for the selective synthesis of cyclopentanones from biobased furfurals

Gao, Rui; Li, Xiang; Guo, Lingyun; Tong, Zhikun; Deng, Qiang; Wang, Jun; Zeng, Zheling; Zou, Ji Jun; Deng, Shuguang

doi:10.1016/j.apcata.2020.117985

Cited by 20 publications

(19 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the bifunctional catalyst, support is as important as metals, which provides the acid-base sites for aldol condensation [1]. Therefore, in order to understand the effect of supports, commonly used supports, such as acidic Al 2 O 3 [38], strong basic MgO, CaO [39,40] and weak basic ZnO [41], TiO 2 [42], CeO 2 [43] [36] cooperatively resulted in the high performance of Pd/ZrO 2 catalyst.…”

Section: Effects Of Active Metals and Supportsmentioning

confidence: 99%

One-pot synthesis of 2-alkyl cycloketones on bifunctional Pd/ZrO2 catalyst

Xue

et al. 2021

Applied Catalysis A: General

View full text Add to dashboard Cite

show abstract

Section: Effects Of Active Metals and Supportsmentioning

confidence: 99%

One-pot synthesis of 2-alkyl cycloketones on bifunctional Pd/ZrO2 catalyst

Xue

et al. 2021

Applied Catalysis A: General

View full text Add to dashboard Cite

show abstract

“…In a later report, pyrochlore/Al 2 O 3 composites [Y 2 (Sn 0.65 Al 0.35 ) 2 O 7−δ /Al 2 O 3 ] with Lewis acidity and rich oxygen defects were prepared via a dissolution–precipitation method, and Pd NPs were impregnated on it. 86 The catalyst showed excellent catalytic activity for transforming FF to CPN by catalyzing both hydrogenation and ring-rearrangement steps. Compared to their corresponding single-metal-oxide-based catalysts (Pd/Al 2 O 3 , Pd/Y 2 Sn 2 O 7 ), the superior catalytic activity was attributed to the coordinatively unsaturated metal ions present on the catalytic surface, promoting selective adsorption and hydrogenation of the carbonyl functionality.…”

Section: Catalytic Conversion Of Ff Into Cpnmentioning

confidence: 99%

“…As discussed in Table 1 (entry 47), the Pd/7.74% Y 2 (Sn 0.65 Al 0.35 ) 2 O 7−δ /Al 2 O 3 catalyst was used for the hydrogenative ring rearrangement of FFs, and a 90.6% yield of HCPN was obtained from HMF under optimized conditions. 86 …”

Section: Catalytic Conversion Of Hmf To Hcpnmentioning

confidence: 99%

Catalytic Transformation of Biomass-Derived Furfurals to Cyclopentanones and Their Derivatives: A Review

Dutta

Bhat

2021

ACS Omega

View full text Add to dashboard Cite

Furfural (FF) and 5-(hydroxymethyl)furfural (HMF) are well-recognized biomass-derived chemical building blocks with established applications and markets for several of their derivatives. Attaining a wide spectrum of petrochemicals is the primary target of a biorefinery that employs FF and HMF as the chemical feedstock. In this regard, cyclopentanone (CPN) is a crucial petrochemical intermediate used for synthesizing a diverse range of compounds with immense commercial prospects. The hydrogenative ring rearrangement of FF to CPN in an aqueous medium under catalytic hydrogenation conditions was first reported in 2012, whereas the first report on the catalytic conversion of HMF to 3-(hydroxymethyl)cyclopentanone (HCPN) was published in 2014. Over the past decade, several investigations have been undertaken in converting FF and HMF to CPN and HCPN, respectively. The research studies aimed to improve the scalability, selectivity, environmental footprint, and cost competitiveness of the process. A blend of theoretical and experimental studies has helped to develop efficient, inexpensive, and recyclable heterogeneous catalysts that work under mild reaction conditions while providing excellent yields of CPN and HCPN. The time is ripe to consolidate the data in this area of research and analyze them rigorously in a review article. This work will assist both beginners and experts of this field in acknowledging the accomplishments to date, recognize the challenges, and strategize the way forward.

show abstract

“…These catalysts shows comparable HCPO synthesis efficiency with previous reports under a relatively short reaction time, low reaction temperature, and high reactant concentration (Table S1). [14,16,31,37,38,[63][64][65] The kinetic studies of HMF hydrogenation were performed to analyze the difference of hydrogenation ability, it reveals that the C=O hydrogenation kinetics follows a pseudo-firstorder reaction (Figure S11). These kinetics parameters are linked to the O v amount: Pd/La 2 Ce 2 O 7 (0.31 h À 1 , 0.56) < Pd/La 2 Zr 2 O 7 (0.75 h À 1 , 0.69) < Pd/La 2 Ti 2 O 7 (1.33 h À 1 , 0.81) (Figure 2E).…”

Section: Hydrogenation Of 5-hydroxymethyl Furfuralmentioning

confidence: 99%

Highly Controllable Hydrogenative Ring Rearrangement and Complete Hydrogenation Of Biobased Furfurals over Pd/La₂B₂O₇ (B=Ti, Zr, Ce)

Tong

Gao

et al. 2021

ChemCatChem

Self Cite

View full text Add to dashboard Cite

Developing a highly selective catalyst to upgrade furfurals (5hydroxymethyl furfural and furfural) to cyclopentanones (3hydroxymethyl cyclopentanone and cyclopentanone) and tetrahydrofuran alcohols (2,5-bishydroxymethyl tetrahydrofuran and tetrahydrofuran alcohol) is highly significant for biobased fine chemical synthesis. Here, a series of La 2 B 2 O 7 (B=Ti, Zr, Ce) metal oxides, featuring the same chemical formula but different topological structures are fabricated. After Pd loading, the Lewis acidity and metal-support interaction are well governed by the support type, which further affects the hydrogenation and acid-catalyzed ability. A greater than 82 % yield of cyclopentanones is obtained via a hydrogenative ring rearrangement route over Pd/La 2 Ti 2 O 7 . However, Pd/La 2 Ce 2 O 7 shows high catalytic efficiency for tetrahydrofuran alcohols with an approximately 80 % yield via a complete hydrogenation route. Additionally, the catalyst exhibits outstanding recycling performance and structural stability. This study presents an interesting design strategy for the selective preparation of cyclopentanones and tetrahydrofuran alcohols through the regulation of the adsorption mechanism.

show abstract

Pyrochlore/Al2O3 composites supported Pd for the selective synthesis of cyclopentanones from biobased furfurals

Cited by 20 publications

References 55 publications

One-pot synthesis of 2-alkyl cycloketones on bifunctional Pd/ZrO2 catalyst

One-pot synthesis of 2-alkyl cycloketones on bifunctional Pd/ZrO2 catalyst

Catalytic Transformation of Biomass-Derived Furfurals to Cyclopentanones and Their Derivatives: A Review

Highly Controllable Hydrogenative Ring Rearrangement and Complete Hydrogenation Of Biobased Furfurals over Pd/La₂B₂O₇ (B=Ti, Zr, Ce)

Contact Info

Product

Resources

About

Pyrochlore/Al2O3 composites supported Pd for the selective synthesis of cyclopentanones from biobased furfurals

Cited by 20 publications

References 55 publications

One-pot synthesis of 2-alkyl cycloketones on bifunctional Pd/ZrO2 catalyst

One-pot synthesis of 2-alkyl cycloketones on bifunctional Pd/ZrO2 catalyst

Catalytic Transformation of Biomass-Derived Furfurals to Cyclopentanones and Their Derivatives: A Review

Highly Controllable Hydrogenative Ring Rearrangement and Complete Hydrogenation Of Biobased Furfurals over Pd/La2B2O7 (B=Ti, Zr, Ce)

Contact Info

Product

Resources

About

Highly Controllable Hydrogenative Ring Rearrangement and Complete Hydrogenation Of Biobased Furfurals over Pd/La₂B₂O₇ (B=Ti, Zr, Ce)