Synthesis of methyl propyl carbonate via gas-phase transesterification over TiO2/Al2O3

Dong, Yanmin; Xing-quan, Chen; Zhao, Chuan‐Zhen; Zhao, Tiansheng

doi:10.1016/j.molcata.2010.08.015

Cited by 10 publications

(4 citation statements)

References 18 publications

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“…The O 1s (Figure ) peak was observed to be broad and complicated due to overlapping contribution of oxygen from titania and alumina in the case of Ni−Al‐Ti catalyst suggesting the coexistence of different chemical environments of the oxygen species . Furthermore, there was slight shift in the O 1s peaks in samples, which indicated a change in the electronic environment around the oxygen atom and that the Al‐O−Ti bridges had partially substituted Al‐O−Al bond or Ti‐O−Ti in near surface region.…”

Section: Resultsmentioning

confidence: 56%

Ni‐Al‐Ti Hydrotalcite Based Catalyst for the Selective Hydrogenation of Biomass‐Derived Levulinic Acid to γ‐Valerolactone

et al. 2019

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NiÀ Al-Ti mixed oxide derived from NiÀ Al-Ti hydrotalcite precursor is identified as an efficient catalyst for the hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL). This catalyst showed high active surface Ni sites due to a higher synergy in the mixed oxide formed from the hydrotalcite precursor. These results are further supported by X-ray diffraction analysis (XRD), electron spin resonance spectroscopy (ESR) and scanning electron microscopy (SEM) results. The higher activity of NiÀ Al-Ti compared to NiÀ Al, NiÀ Ti catalysts was attributed to a high ratio of Lewis to Brønsted acid sites (LAS/BAS) observed from pyridine adsorption -DRIFTS results along with high surface Ni sites on the catalyst surface measured from CO-chemisorption studies. This contributed to the enhanced selectivity of the desired product, GVL over NiÀ Al-Ti catalyst as compared to its individual counter parts, NiÀ Ti and NiÀ Al catalysts.[a] R.

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Section: Resultsmentioning

confidence: 56%

Ni‐Al‐Ti Hydrotalcite Based Catalyst for the Selective Hydrogenation of Biomass‐Derived Levulinic Acid to γ‐Valerolactone

et al. 2019

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“…These heterogeneous systems include supported metal oxides and binary oxide mixtures. For example, MoO 3 /SiO 2 and sol–gel MoO 3 /TiO 2 is used for the preparation of diphenyl oxalate monomer (DPO, Scheme 1) in polycarbonate chemistry [4–5], and TiO 2 /SiO 2 and similar binary combinations are applied in the transesterification of β-ketoesters [6], and in the synthesis of unsymmetrical carbonates R 1 OC(O)OR 2 [7]. …”

Section: Introductionmentioning

confidence: 99%

Ionic liquids as transesterification catalysts: applications for the synthesis of linear and cyclic organic carbonates

Selva¹,

Perosa²,

Guidi³

et al. 2016

Beilstein J. Org. Chem.

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SummaryThe use of ionic liquids (ILs) as organocatalysts is reviewed for transesterification reactions, specifically for the conversion of nontoxic compounds such as dialkyl carbonates to both linear mono-transesterification products or alkylene carbonates. An introductory survey compares pros and cons of classic catalysts based on both acidic and basic systems, to ionic liquids. Then, innovative green syntheses of task-specific ILs and their representative applications are introduced to detail the efficiency and highly selective outcome of ILs-catalyzed transesterification reactions. A mechanistic hypothesis is discussed by the concept of cooperative catalysis based on the dual (electrophilic/nucleophilic) activation of reactants.

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“…[Bu 4 N][Fe(CO) 3 (NO)], [79] [C 4 DABCO]OH, [80] TiO 2 /Al 2 O 3, [81] BF 3 -OEt 2 , [82] DPA, [83] molecular sieves, [84] pseudomonas aeruginosa lipase, [85] cesium fluoride, [86] tetranuclear zinc cluster, [87] zwitterionic Salt, [88] Au, [89] [Bu 4 N][Fe(CO) 3 (NO)] 2 , [90] t-BuNH 2 , [91] zinc(II) oxide, [92] boric acid, [93] sulfated tin oxides (superacid solid), [94] ceria-yttria, [95] Mg-Al-HT-like anionic clay, [96] FeÀ Zn cyanide, [97] CuSO 4 , [98] 3-nitrobenzeneboronic acid, [99,100] PFPAT, [101] diethylzinc, [102] zeolite H-FER, [103] Novozyme-435/DMSO, [104] Ti-(O)(acac) 2 , [105] NalO 4 , KIO 4 and anhydrous CaCl 2 , [106] Nb 2 O 5 , [107] MoO 3 /SiO 2 , [108] borate zirconia, [109] Sm, Sn, In, Y (Ref. therein), [110] Sn[N(SO 2 C 8 F 17 ) 2 ] 14 & Hf[N(SO 2 C 8 F 17 ) 2 ] 4 , [111] feruloyl esterase, [112] titanosilicate molecular sieves, [113] renewable chemicals (Ref.…”

Section: -2010mentioning

confidence: 99%

β‐Ketoesters: An Overview and It's Applications via Transesterification

et al. 2021

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The transesterification process has attained more significant importance in synthesizing a variety of commercial and noncommercial β-ketoesters using alcohols and variety of acetoacetates. β-Ketoesters have been considered essential synthons in synthetic organic chemistry because of electrophilic and nucleophilic reactive sites and are used as key intermediates in synthesizing the diversity of complex drug molecules. This review provides an overview of the synthesis of β-ketoesters, various reaction mechanisms, substrate scope, and diverse applications in the bio-diesel industry and the pharmaceutical industry to synthesize novel drug molecules via transesterification transformation.

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Synthesis of methyl propyl carbonate via gas-phase transesterification over TiO2/Al2O3

Cited by 10 publications

References 18 publications

Ni‐Al‐Ti Hydrotalcite Based Catalyst for the Selective Hydrogenation of Biomass‐Derived Levulinic Acid to γ‐Valerolactone

Ni‐Al‐Ti Hydrotalcite Based Catalyst for the Selective Hydrogenation of Biomass‐Derived Levulinic Acid to γ‐Valerolactone

Ionic liquids as transesterification catalysts: applications for the synthesis of linear and cyclic organic carbonates

β‐Ketoesters: An Overview and It's Applications via Transesterification

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