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One-pot synthesis

Tìm thấy 18+ kết quả cho từ khóa "One-pot synthesis"

Microwave assisted, sequential two-step, one-pot synthesis of novel imidazo[1,2-a] pyrimidine containing tri/tetrasubstituted imidazole derivatives

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Microwave assisted, sequential two-step, one-pot synthesis of novel imidazo[1,2-a]. In this study, one-pot, sequential two step synthesis of imidazo[1,2-a]pyrimidine containing tri and tetrasubstituted novel imidazoles (1-10) from imidazo[1,2-a]pyrimidine-2-carbaldehyde, aliphatic/aromatic amines, benzil, and ammonium acetate in the presence of p-TsOH catalyst applying microwave energy was reported for the first time (Scheme 1).

Host/guest inclusion system of surfactants with β -cyclodextrin as a viable catalyst for one-pot synthesis of mono- and bis (indolyl)methylmalononitriles in H2O

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Host/guest inclusion system of surfactants with β -cyclodextrin as a viable catalyst for one-pot synthesis of mono- and bis (indolyl)methylmalononitriles in.

Poly(4-vinylpyridine)-supported dual acidic ionic liquid: an environmentally friendly heterogeneous catalyst for the one-pot synthesis of 4,4’-(arylmethylene)bis(3-methyl-1-phenyl-1H-pyrazol-5-ols)

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Poly(4-vinylpyridine)-supported dual acidic ionic liquid: an environmentally friendly heterogeneous catalyst for the one-pot synthesis of.

One-pot synthesis of graphene hydrogel-anchored cobalt-copper nanoparticles and their catalysis in hydrogen generation from ammonia borane

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Considering the advantages of the presented one-pot synthesis protocol for the synthesis of GH-CoCu nanocatalysts, which is the first example in this manner, and their high catalytic activity in the HAB, the current study has the potential to open a new way for the employment of GH-CoCu nanocatalysts in different applications..

One-pot synthesis of new N -(1-methylpyridin-4(1H)-ylidene)amine ligands for palladium-catalyzed Heck coupling reaction

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This research work presents the one-pot synthesis of five new reactive intermediates (PYEs) (Figure 2) that act as cocatalysts for palladium acetate and thus considerably enhance its catalytic activity towards the Heck–Mizoroki C-C cross-coupling reaction under various conditions. Initially, a melt reaction between 4-chloro-1-methylpyridin-1-ium triflate with the corresponding amine was carried out followed by deprotonation of the corresponding amine by sodium hydride (base) in dichloromethane.

Thermal conversion of glycerol to value-added chemicals: pyridine derivatives by one-pot microwave-assisted synthesis

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This one-pot synthesis in a closed vessel under pressure of gaseous products by microwave heating was proved to be a better method for the synthesis of heteroaromatics from glycerol instead of open system pyrolysis..

A microwave-assisted highly stereoselective one-pot Wittig reaction under solvent-free conditions

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Key words: Wittig reaction, stereoselectivity, microwave-assisted, one-pot synthesis, heterogeneous catalysis.

An efficient one-pot, three-component synthesis of 6-cyano-hexahydro-4H-thieno[3’,2’:5,6]pyrimido[1,2-a]quinoline-2-carboxylates and their spiro derivatives from β-enaminones

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Abstract: A simple and efficient one-pot synthesis of novel thieno[3’,2’:5,6]pyrimido[1,2-a]quinoline-2-carboxylates (5a–. In light of the above-mentioned hypothesis, we assume that integration of the two scaffolds into a spirooxindole incorporating thieno[3’,2’:5,6]pyrimido[1,2-a]quinoline-2-carboxylates can result in the discovery of new active drugs..

Advances in polymer based Friedlander quinoline synthesis

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PVA/Fe(NO 3 ) 3 nanofiber mats: An efficient, heterogeneous and recyclable catalyst for the synthesis of quinolines via Friedländer annulations. Synthesis of quinolines and pyrido[3,2-g or 2,3-g]. Palladium-based nanocatalyst for one-pot synthesis of polysubstituted quinolines.

Synthesis and biological evaluation of quinoline-triazole and quinolone-triazole conjugates

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Terminal acetylenes on quinoline derivatives 1–3 make them valuable candidates for one-pot synthesis of the target triazole structures.

Isoquinoline-substituted triazole and pyran derivatives: synthesis and computational studies

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Herein, we report the synthesis of novel isoquinoline-substituted 1,2,3-triazole derivatives through one-pot synthesis and also isoquinoline-substituted dihydropyran and cyclopentenone pyran derivatives by ring closing metathesis and Pauson–Khand reactions, separately.. Isoquinoline-substituted homopropargyl alcohol 2 was used as template for the construction of triazole scaffolds.. One-pot synthesis of isoquinoline-substituted 1,2,3-triazole derivatives, 3–8.. One-pot triazole synthesis.

Graphitic carbon nitride quantum dots: Synthesis and applications

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Nyokong, In situ one-pot synthesis of graphitic carbon nitride quantum dots and its 2,2,6,6-tetramethyl(piperidin-1-yl)oxyl derivatives as fluorescent nanosensors for ascorbic acid, Anal. Chen, Graphitic carbon nitride quantum dots in situ coupling to Bi 2 MoO 6. Guo et al., Hydrothermal synthesis of highly fluorescent carbon nanoparticles from sodium citrate and their use for the detection of mercury ions, Carbon .

Synthesis of fused tetrazolone derivatives

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The tetrazolone scaffold is especially important for pesticide development and the most general synthetic approach for tetrazolone synthesis involves 1,3-dipolar cycloaddition reaction of azides to isocyanates (Scheme 1).. The synthesis of 1,4-disubstituted tetrazolone.. Herein, we report a simple, mild, and one-pot synthesis of novel fused tetrazolone derivatives starting from anhydrides.. Synthesis of fused tetrazolone derivatives 7 starting from the substituted homophthalic acids 4..

Boric acid as an efficient and green catalyst for the synthesis of 2-amino-4,6-diarylnicotinonitrile under microwave irradiation in solvent-free conditions

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Boric acid as an efficient and green catalyst for the synthesis of. 2-amino-4,6-diarylnicotinonitrile under microwave irradiation in solvent-free conditions. Abstract: Microwave irradiation has been used to improve the one-pot synthesis of substituted 2-amino-4,6-diarylnicoti- nonitrile in the presence of boric acid as an efficient and green catalyst under solvent-free conditions within 48–60 s.

Conversion of racemic allylic hydroperoxides into corresponding chiral 1/2,3-triols by using catalytic OsO4 and chiral cinchona ligands in the absence of co-oxidant

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On the other hand, these two methods were also the pioneering examples for the synthesis of 1/2,3-triols from allylic hydroperoxides via intramolecular oxygen atom transfer.. In this protocol, an easy, facile, and applicable method was employed for the synthesis of chiral 1/2,3-triols. An effective method for the one-pot synthesis of 1/2,3-triols involves chiral cinchona alkaloids and the hydroperoxide group serving as both the co-oxidant and substrate.

The promoted synthesis of minoxidil by magnetic nanoparticles of cobalt ferrite (CoFe2O4) as a heterogeneous reusable catalyst

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Synthesis of highly crystalline and mono disperse maghemite nanocrystallites without a size-selection process. Journal of the American Chemical Society 2001. doi: 10.1021/ja016812s. doi: 10.1016/j.pmatsci . doi: 10.1166/jap.2017.1373. doi: 10.1016/j.cplett . /Mg(OH) 2 nanocomposite as an efficient heterogeneous catalyst for regioselective one-pot synthesis of β - chloroacetates from epoxides. doi: 10.1002/aoc.4520 20. ef?

Preparation of G-CuO NPs and G-ZnO NPs with mallow leaves, investigation of their antibacterial behavior and synthesis of bis(indolyl)methane compounds under solventfree microwave assisted dry milling conditions using G-CuO NPs as a catalyst

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With the obtained G-CuONPs, the synthesis of bis(indolyl)methanes with the “green” one-pot synthesis using microwave was achieved quickly and with high efficiency, and the thermal behavior of the obtained products was investigated.. doi:10.3906/kim-2105-31 Research Article. parviflora L., which grows mostly in the Aegean and Mediterranean regions.

Wool-coiled bimetallic oxysulfide MoSrOS catalyst synthesis for catalytic reduction of toxic organic pollutants and heavy metal ions

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After the exploration of the one-pot synthesis of forming MoS- rOS, this compound can be identi fi ed as the S-doped and Mo 4þ - existing SrMoO 4 phase. The S doping in the SrMoO 4 lattice can distort the MoSrOS structure and increase the catalyst activity. 9 shows the proposed reduction mechanism of pollutants in the presence of the MoSrOS catalyst and NaBH 4 .

One-pot synthesis of VOx/Al2O3 as efficient catalysts for propane dehydrogenation

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One-pot synthesis of VO x /Al 2 O 3 as efficient catalysts for propane dehydrogenation. In this paper, a series of VO x /Al 2 O 3 catalysts were fabricated by the 1-pot method for catalytic propane dehydrogenation. The results indicated that the VO x /Al 2 O 3. Key words: One-pot synthesis, propane dehydrogenation, VO x /Al 2 O 3 catalysts.

One-pot synthesis of quinazolin-4(3H )-ones and 2,3-dihydroquinazolin-4(1H )-ones utilizing N -(2-aminobenzoyl)benzotriazoles

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One-pot synthesis of quinazolin-4(3 H )-ones and. Abstract: A convenient and efficient method has emerged for the one-pot synthesis of substituted quinazolin-4(3H. Synthesis of 2-substituted quinazolin-4(3H )-one (3a–3j).. Synthesis of 2-substituted quinazolin-4(3 H) -ones (3a–3j).. Synthesis of 2,3-disubstituted quinazolin-4(3 H)-ones (4a–4d)..