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alkylation 2

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carbon dioxide 2

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N-methylaniline 1

DNA alkylation 1

FAU(Y) zeolite 1

MOFs 1

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alkylation of benzene 1

alkylation of polymethylbenzenes 1

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DNA alkylation promoted by an electron-rich quinone methide intermediate

Chengyun Huang,Steven E. Rokita

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2,   Pages 213-221 doi: 10.1007/s11705-015-1541-3

Abstract: methides have previously been limited by the slow exchange of their covalent self-adducts and subsequent alkylationprecursor and a 5'-aminohexyloligonucleotide accelerates formation of its reversible self-adduct and alkylation

Keywords： quione methide     DNA alkylation     reversible covalent reaction     bioconjugation     target-directed modification    

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Benzene alkylation with long chain olefins catalyzed by ionic liquids: a review

QIAO Congzhen, CAI Yonghong, GUO Quanhui

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 346-352 doi: 10.1007/s11705-008-0045-9

Abstract: The introduction of ionic liquids to alkylation process gives a choice for “green production” in theof papers and patents have been published using chloroaluminate ionic liquid as a novel catalyst for alkylationAccording to published data and several results of pilot alkylation,including the authors’ experience

Keywords： different     petrochemical     characterization     introduction     chloroaluminate    

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ZnZr/HZSM-5 as efficient catalysts for alkylation of benzene with carbon dioxide

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 404-414 doi: 10.1007/s11705-022-2215-6

Abstract: Alkylation of benzene with carbon dioxide and hydrogen to produce toluene and xylene could increase theIn this work, the alkylation benzene with carbon dioxide and hydrogen reaction was proceeded by using

Keywords： carbon dioxide     alkylation of benzene     solid solution catalyst     bifunctional catalyst    

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Catalytic process modeling and sensitivity analysis of alkylation of benzene with ethanol over MIL-101

Ehsan Rahmani, Mohammad Rahmani

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1100-1111 doi: 10.1007/s11705-019-1891-3

Abstract: A solvothermal method was used to synthesize MIL-101(Fe) and MIL-88(Fe), which were used for alkylation

Keywords： MOFs     alkylation     ethylbenzene     catalysts pellet model     kinetic model     sensitivity analysis    

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Octane compositions in sulfuric acid catalyzed isobutane/butene alkylation products: experimental and

Lina Liang, Youzhi Liu, Weizhou Jiao, Qiaoling Zhang, Chao Zhang

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1229-1242 doi: 10.1007/s11705-020-2030-x

Abstract: Octanes in alkylation products obtained from industrial alkylation were studied by batch experiments.carbenium ion mechanism, the carbocation transition states in concentrated sulfuric acid catalyzed alkylationCalculation results indicated that composition and content of trimethylpentanes in the alkylation productsmodels developed in this work will be useful for understanding the product distributions of octane in alkylation

Keywords： sulfuric acid catalyzed alkylation     carbocation reaction     transition state     octane compositions    

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Continuous reaction performances of benzene alkylation with long chain olefins catalyzed by ionic liquid

QIAO Congzhen, LI Chengyue

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 69-73 doi: 10.1007/s11705-008-0014-3

Abstract: mixing-reacting-separating-recycling small experimental setup,the continuous reaction performances of benzene alkylationdifferent axial positions along the static mixing reactor (reagent materials) and normal continuous alkylationThe refined industrial olefins as raw material could meet with the requirements of continuous alkylation

Keywords： stability     different     hypecritical     compulsive mixing-reacting-separating-recycling     non-benzene    

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Alkylation of benzene with propylene catalyzed by FeCl3-chloropyridine ionic liquid

SUN Xuewen, ZHAO Suoqi, LI Hui

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 292-295 doi: 10.1007/s11705-007-0053-1

Abstract: Alkylation of benzene with propylene was carried out with FeCl3-chloro-butyl-pyridine (FeCl-[bpc]) ionicAt the initial stage of the reaction, alkylation is the main reaction and a higher conversion of propylene
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Alkylation of benzene with carbon dioxide to low-carbon aromatic hydrocarbons over bifunctional Zn-Ti

Xiangyu Liu, Yanling Pan, Peng Zhang, Yilin Wang, Guohao Xu, Zhaojie Su, Xuedong Zhu, Fan Yang

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 384-396 doi: 10.1007/s11705-021-2045-y

Abstract: Alkylation of benzene to value-added, high octane number and low toxic toluene and xylenes provides aUtilization of CO as a carbon source for benzene alkylation could achieve both goals.Herein, alkylation of benzene with CO and H was realized by a series of low-cost bifunctional catalysts

Keywords： carbon dioxide     benzene     alkylation     bifunctional catalyst     mechanism    

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Confinement effects in methanol to olefins catalysed by zeolites: A computational review

German Sastre

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 1,   Pages 76-89 doi: 10.1007/s11705-016-1557-3

Abstract: Small pore zeolites, containing 8-rings as the largest, are widely employed as catalysts in the process of methanol-to-olefins (MTO). Reactants and products diffuse with constraints through 8-rings and this is one of the reaction bottlenecks related to zeolite micropore topology. Small pore zeolites and silicon-aluminophosphates(SAPOs) containing cavities, where olefins are mainly formed through the hydrocarbon pool (HP) mechanism, are frequently tested for MTO. Shape selectivity of transition states within the side-chain methylation will be reviewed as this is one of the controlling steps of the MTO process, with particular attention to the role of hexamethylbenzene (HMB) and heptamethylbenzenium cation (HeptaMB ), which are the most tipically detected reaction intermediates, common to the paring and side-chain routes within the HP mechanism. The relative stability of these and other species will be reviewed in terms of confinement effects in different cage-based zeolites. The role of the different alkylating agents, methanol, dimethyl ether (DME), and surface methoxy species (SMS) will also be reviewed from the computational viewpoint.

Keywords： small pore zeolites     SAPOs     methanol-to-olefins     hydrocarbon pool mechanism     alkylation of polymethylbenzenes    

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Hierarchical ZSM-5 zeolite with radial mesopores: Preparation, formation mechanism and application for benzene alkylation

Darui Wang, Hongmin Sun, Wei Liu, Zhenhao Shen, Weimin Yang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 248-257 doi: 10.1007/s11705-019-1853-9

Abstract: possesses more accessible acid sites and has a higher catalytic activity and a longer lifetime for the alkylation

Keywords： hierarchical ZSM-5 zeolite     protective desilication     piperidine     radial mesopores     benzene alkylation    

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Novel method for the preparation of Cs-containing FAU(Y) catalysts for aniline methylation

Olga A. Ponomareva, Polina A. Shaposhnik, Marina V. Belova, Boris A. Kolozhvari, Irina I. Ivanova

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 70-76 doi: 10.1007/s11705-017-1694-3

Abstract: Cs-containing FAU(Y)-type zeolite catalysts were prepared by conventional and novel ion exchange procedures followed by incipient wetness impregnation with CsOH. The novel ion exchange procedure involved hydrothermal treatment of NaY zeolite in aqueous solution of CsCl at 140–200 °C for 6–24 h. The samples were characterized by low-temperature nitrogen adsorption, X-ray fluorescence analysis, X-ray powder diffraction, scanning electron microscopy, Na, Al and Cs magic angle spinning nuclear magnetic resonance, CO and NH -Temperature programmed desorption. The results show that hydrothermal treatment at 200 °C allows to obtain higher degrees of ion-exchange (up to 83%) with respect to conventional method giving maximum 66%–69%. Catalytic properties of Cs-containing FAU(Y) were studied in aniline methylation. The yield of -methylaniline is shown to correlate with catalyst’s basicity. The best catalyst performance was achieved over the catalyst with the highest ion-exchange degree impregnated with CsOH. The selectivity to -methylaniline over this catalyst reached 96.4%.

Keywords： FAU(Y) zeolite     ion exchange with cesium     aniline alkylation     N-methylaniline    

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Title Author Date Type Operation

DNA alkylation promoted by an electron-rich quinone methide intermediate

Chengyun Huang,Steven E. Rokita

Journal Article

Benzene alkylation with long chain olefins catalyzed by ionic liquids: a review

QIAO Congzhen, CAI Yonghong, GUO Quanhui

Journal Article

ZnZr/HZSM-5 as efficient catalysts for alkylation of benzene with carbon dioxide

Journal Article

Catalytic process modeling and sensitivity analysis of alkylation of benzene with ethanol over MIL-101

Ehsan Rahmani, Mohammad Rahmani

Journal Article

Octane compositions in sulfuric acid catalyzed isobutane/butene alkylation products: experimental and

Lina Liang, Youzhi Liu, Weizhou Jiao, Qiaoling Zhang, Chao Zhang

Journal Article

Continuous reaction performances of benzene alkylation with long chain olefins catalyzed by ionic liquid

QIAO Congzhen, LI Chengyue

Journal Article

Alkylation of benzene with propylene catalyzed by FeCl3-chloropyridine ionic liquid

SUN Xuewen, ZHAO Suoqi, LI Hui

Journal Article

Alkylation of benzene with carbon dioxide to low-carbon aromatic hydrocarbons over bifunctional Zn-Ti

Xiangyu Liu, Yanling Pan, Peng Zhang, Yilin Wang, Guohao Xu, Zhaojie Su, Xuedong Zhu, Fan Yang

Journal Article

Confinement effects in methanol to olefins catalysed by zeolites: A computational review

German Sastre

Journal Article

Hierarchical ZSM-5 zeolite with radial mesopores: Preparation, formation mechanism and application for benzene alkylation

Darui Wang, Hongmin Sun, Wei Liu, Zhenhao Shen, Weimin Yang

Journal Article

Novel method for the preparation of Cs-containing FAU(Y) catalysts for aniline methylation

Olga A. Ponomareva, Polina A. Shaposhnik, Marina V. Belova, Boris A. Kolozhvari, Irina I. Ivanova

Journal Article