ChemInform Abstract: Ammonium Metavanadate an Efficient Catalyst for Erlenmeyer Synthesis.

Madje, Balaji R.; Ubale, Milind; Bharad, Jagdish; Shingare, Murlidhar S.

doi:10.1002/chin.201332143

Cited by 6 publications

(7 citation statements)

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“…Potassium Alum (KAl(SO 4 ) 2 •12H 2 O) is an inexpensive, non-toxic, water-soluble, and commercially available compound frequently used in the laboratory with no special precautions [24,25,26,27,28,29,30,31]. Data on the characterization of the produced KAl(SO 4 ) 2 •12H 2 O by scanning electron microscopy (SEM), FT-IR, and XRD, are illustrated in Figure 1, Figure 2, and Figure 3 However, the latter are reportedly to be of a more rounded shape, with a size range of between 100-200 μm at higher temperatures of 1100-1200 C (Figure 1).…”

Section: Characterization Of Catalystmentioning

confidence: 99%

“…This study introduces the term "dreamland catalyst" to denote a heterogeneous catalyst which is a cheap, water-soluble, mild, efficient, safe, stable, nontoxic, reliable, incorruptible, recyclable and commercially available compound that can be used in the laboratory without special precautions (easy to use). Moreover, the catalyst has been commonly applied in several other synthetic reactions with good success, for example, including in the transesterification of palm oil [24], acylals [25], Azlactone [26]; coumarins [27], amides [28], β-acetamido ketones [29], novel bis[spiro(quinazoline-oxindole)] derivatives [30], and bispyrazole derivatives [31]. It was therefore decided to investigate alum (KAl(-SO 4 ) 2 .12H 2 O) in catalyzing certain synthetic reactions, this study assumed that this catalyst may be effective to catalyze the methoxylation of α-pinene to produce α-terpinyl methyl ether.…”

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confidence: 99%

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Potassium Alum [KAl(SO4)2∙12H2O] solid catalyst for effective and selective methoxylation production of alpha-pinene ether products

Wijayati

Lestari

Wulandari

et al. 2021

Heliyon

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Methoxylation is a relevant technological process applied in the production of high-value α-pinene derivatives.This report investigates the use of potassium alum [KAl(SO 4 ) 2 ⋅ 12H 2 O] as a catalyst in the methoxylation of α-pinene. In this study, the methoxylation reaction was optimized for the highest conversion of α-pinene and selectivity, assessed for the factors, catalyst loading (0.5; 1.0; and 1.5 g), volume ratio of α-pinene: methanol (1:4, 1:7, 1:10), reaction temperature (50, 55, 60 and 65 C), and reaction time (72, 144, 216, 288, 360 min). The highest selectivity of KAl(SO 4 ) 2 •12H 2 O in the methoxylation of α-pinene was achieved under an optimal condition of 1 g of catalyst loading, volume ratio of 1:10, as well as the reaction temperature and incubation time of 65 C and 6 h, respectively. GC-MS results revealed the yields of the methoxylated products from the 98.2% conversion of α-pinene, to be 59.6%, 8.9%, and 7.1% for α-terpinyl methyl ether (TME), fenchyl methyl ether (FME), bornyl methyl ether (BME), respectively. It was apparent that a lower KAl(SO 4 ) 2 •12H 2 O loading (0.5-1.5 g) was more economical for the methoxylation reaction. The findings seen here indicated the suitability of the KAl(SO 4 ) 2 ⋅ 12H 2 O to catalyze the methoxylation of α-pinene to produce an commercially important ethers.

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Section: Characterization Of Catalystmentioning

confidence: 99%

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confidence: 99%

Potassium Alum [KAl(SO4)2∙12H2O] solid catalyst for effective and selective methoxylation production of alpha-pinene ether products

Wijayati

Lestari

Wulandari

et al. 2021

Heliyon

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“…This is because of the racemic nature of the product. When phenol was reacted with benzaldehyde 1a and dimedone 3 under the optimized reaction conditions, 3,3,6,6-tetramethyl-9-phenyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1, 8(2H)-dione [35] was formed in 92% yield with no formation of the requisite tetrahydrobenzo[a]xanthen-11-one, revealing the nonparticipation of phenol in the reaction.…”

Section: Alum-catalyzed Domino Synthesis 3539mentioning

confidence: 99%

Alum-Catalyzed Domino Synthesis of 12-Substituted-8,9,10,12-tetrahydrobenzoxanthen-11-ones Under Solvent-Free Conditions

Sharma

Khajuria

Kapoor

2014

Synthetic Communications

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“…The yellow solid which precipitated on the addition of 5 ml of 95% ethyl alcohol, was filtered, washed with hot water and recrystallized with acetone/water to give azlactone in 96 % yield and had a melting point 168-170 °C (Scheme 30) [63].…”

Section: Synthesis Of Azlactonementioning

confidence: 99%

Practical Approach to Green Chemistry

Bhandari

Raj

2017

Int J Pharm Pharm Sci

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The basic principles of green chemistry addresses various issues related to synthesis of chemical compounds: planning organic synthesis to maximise yield, prevention/minimization of waste, atom economy, the use of less lethal chemicals, use of safer solvents, renewable starting materials, energy efficiency and use of green catalysts. The objective of this study is to elaborate the practical approach of green methods. In this paper, we elucidate some important common syntheses having green procedures which can be used in the fields of pharmaceutical chemistry and other fields as well. Green chemistry principles follow up to reduce pollution and environmental degradation by utilizing eco-friendly, nonhazardous, reproducible and efficient solvents and catalysts in the synthesis of drug molecules, drug intermediates and in researches involving synthetic chemistry. The paper also approaches green methods in which microwave radiation can be used as an energy efficient tool. Experimental procedures are gathered from educational journals and laboratory manuals and are viewed in the light of efficacy of green chemistry principles.

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ChemInform Abstract: Ammonium Metavanadate an Efficient Catalyst for Erlenmeyer Synthesis.

Cited by 6 publications

References 0 publications

Potassium Alum [KAl(SO4)2∙12H2O] solid catalyst for effective and selective methoxylation production of alpha-pinene ether products

Potassium Alum [KAl(SO4)2∙12H2O] solid catalyst for effective and selective methoxylation production of alpha-pinene ether products

Alum-Catalyzed Domino Synthesis of 12-Substituted-8,9,10,12-tetrahydrobenzoxanthen-11-ones Under Solvent-Free Conditions

Practical Approach to Green Chemistry

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