The mechanism for the synthesis of 1-methoxy-2-propanol from methanol and propylene oxide over magnesium oxide

Zhang, Wenyu; Wang, Hui; Li, Qibiao; Dong, Qing-Nian; Zhao, Ning; Wei, Wei; Sun, Yuhan

doi:10.1016/j.apcata.2005.07.005

Cited by 55 publications

(32 citation statements)

References 18 publications

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“…They are widely used as industrial solvents for coating material, brake fluids, anti-icers and printing inks due to their ether bond and hydroxyl group. Because of the negligible toxicity, propylene glycol ether is expected to be a safe substitute for toxic ethylene glycol ether [1,2]. There are several methods for the synthesis of propylene glycol methyl ether (PGME, 1-methoxy-2-propanol and 2-methoxy-1-propanol), but the propylene oxide (PO) method is the most suitable and commercialized.…”

Section: Introductionmentioning

confidence: 99%

“…There are several methods for the synthesis of propylene glycol methyl ether (PGME, 1-methoxy-2-propanol and 2-methoxy-1-propanol), but the propylene oxide (PO) method is the most suitable and commercialized. The alcoholysis reaction is actually interesting, because it can be in distinguishing between acid and basic catalytic sites [2]. The propylene oxide ring may be opened at the C\O bond.…”

Section: Introductionmentioning

confidence: 99%

“…In the presence of basic sites, the bond preferentially opens at the least sterically hindered position, leading to the domination of secondary alcohols (1-methoxy-2-propanol, MP) in the aspect of quantity. However, acid sites provide most primary alcohols (2-methoxy-1-propanol) [2][3][4]. Therefore, the high selectivity is required for this process, and base catalysts have attracted much attention due to high selectivity of MP [5].…”

Section: Introductionmentioning

confidence: 99%

“…MgO showed a PO conversion of 71.0% and MP selectivity of 92.0%, and was found to be more active and selective than CaO for gaining MP product. At the same time, Al 2 O 3 showed high PO conversion (98.2%), but low selectivity toward MP (75.0%) [2]. Layered double hydroxides had recently received much attention in view of their potential usefulness as adsorbents, as anion exchangers, and most importantly as base catalysts [8].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Mg–Al hydrotalcites as solid base catalysts for alcoholysis of propylene oxide

Zhang

Liao

Zeng

et al. 2014

Fuel Processing Technology

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mg–Al hydrotalcites as solid base catalysts for alcoholysis of propylene oxide

Zhang

Liao

Zeng

et al. 2014

Fuel Processing Technology

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“…Thus solid bases were developed to catalyze the synthesis of propylene glycol ether. Those heterogeneous catalysts included anionic double hydroxide clays [21], basic zeolites [22] and basic metal oxide [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Immobilized 1,1,3,3-Tetramethylguanidine Ionic Liquids as the Catalyst for Synthesizing Propylene Glycol Methyl Ether

et al. 2010

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In this work, we immobilized ionic liquid 1,1,3,3-tetramethylguanidium lactate on two solid supports, bentonite and SBA-15, by different methods. The prepared materials were used to catalyze the reaction of propylene oxide and methanol to produce propylene glycol methyl ether. 1-Methoxy-2-propanol was the predominant product. The influence of the amount of the catalyst, molar ratio of the reactants, reaction temperature and time on the yield and selectivity was studied. The two catalysts were proved to be efficient and reusable catalysts for the reaction.

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Relation Between Coordination and Lewis‐Acid Property of MOF‐Derived Mononuclear Zn(II) Catalyst Toward Epoxide Hydroxylation

et al. 2021

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Lewis-acid properties of the coordinatively unsaturated metal ions are highly relevant to the coordination environment; however, it remains a challenge to establish the coordination structure-activity relationship, especially in heterogeneous catalysis. Here, a typical metal-organic framework, ZIF-8, is selected as the precursor to prepare Lewis-acid based ZnÀ N/ PÀ C mononuclear catalysts, with well-designed external structures but difference in the local coordination. The obtained mononuclear Zn(II) catalysts can not only inherit the advantages of MOF in coordination, but also simulate the homogeneous environment during the catalysis owing to the monodispersed metal sites in ZIF-8. Eventually, relation between coordination and Lewis-acid property toward epoxide hydroxylation has been illustrated. Results show the substituted coordination atom of P and the decrease of coordination number strongly enhance the Lewis-acidity of Zn 2 + , causing the TOF values changes from 8.7 to 80.1 h À 1 based on Zn content. The work affords an understanding and inspiration of coordination environment matters toward Lewis-acid catalysis in organic transformations.

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The mechanism for the synthesis of 1-methoxy-2-propanol from methanol and propylene oxide over magnesium oxide

Cited by 55 publications

References 18 publications

Mg–Al hydrotalcites as solid base catalysts for alcoholysis of propylene oxide

Mg–Al hydrotalcites as solid base catalysts for alcoholysis of propylene oxide

Immobilized 1,1,3,3-Tetramethylguanidine Ionic Liquids as the Catalyst for Synthesizing Propylene Glycol Methyl Ether

Relation Between Coordination and Lewis‐Acid Property of MOF‐Derived Mononuclear Zn(II) Catalyst Toward Epoxide Hydroxylation

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