Category: 591-12-8

Related Products of 591-12-8. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 5-Methylfuran-2(3H)-one, is researched, Molecular C5H6O2, CAS is 591-12-8, about 5-(Chloromethyl)furfural (CMF): A Platform for Transforming Cellulose into Commercial Products. Author is Mascal, Mark.

5-(Chloromethyl)furfural (CMF) is a carbohydrate-derived platform mol. that is gaining traction as a more practical alternative to 5-(hydroxymethyl)furfural (HMF). This perspective introduces the chemocatalytic approach to biorefining as the driving force behind the development of multifunctional chem. platforms. The main advantage of CMF over HMF is that it can be produced in high yield under mild conditions directly from raw biomass. Its stability and hydrophobicity markedly facilitate isolation. CMF is also a precursor to levulinic acid (LA), another versatile biobased intermediate. The logistics of CMF production are discussed, including reactor materials, HCl handling and management, byproducts, and the fate of collateral biomass components (hemicellulose, lipids, proteins, lignin). Examples of com. markets that can be unlocked by synthetic manipulation of CMF are broken out into two derivative manifolds, furanic and levulinic, which are distributed over three product family trees: renewable monomers, fuels, and specialty chems. Selected examples of CMF- and LA-based routes to these products are presented. Finally, a model for the integration of the CMF process into biorefinery practice is put forward.

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Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5-Methylfuran-2(3H)-one( cas:591-12-8 ) is researched.Recommanded Product: 5-Methylfuran-2(3H)-one.Lukic, Igor; Carlin, Silvia; Horvat, Ivana; Vrhovsek, Urska published the article 《Combined targeted and untargeted profiling of volatile aroma compounds with comprehensive two-dimensional gas chromatography for differentiation of virgin olive oils according to variety and geographical origin》 about this compound( cas:591-12-8 ) in Food Chemistry. Keywords: volatile aroma compound virgin olive oil 2D GC; Comprehensive two-dimensional gas chromatography; Croatia; Geographical origin; Mono-dimensional; Multivariate analysis; Variety; Virgin olive oil; Volatile aroma compounds. Let’s learn more about this compound (cas:591-12-8).

Comprehensive two-dimensional gas chromatog. with time-of-flight mass spectrometry (GC × GC-TOF-MS) was combined with conventional mono-dimensional GC-MS to differentiate Croatian virgin olive oils (VOO) according to variety and geog. origin, based on the profile of volatile aroma compounds isolated by HS-SPME. More than 1000 compounds were detected after untargeted profiling and 256 were identified or tentatively identified, providing one of the most detailed profiles of volatile aroma compounds in VOO up to date. Among them, 131 volatile compounds were significantly different across monovarietal VOOs, while 60 were found useful for the discrimination according to geog. origin. Many major lipoxygenase and minor non-lipoxygenase-generated compounds were shown to have discriminating ability with respect to both factors. Multivariate statistical anal. extracted twenty-one volatile markers with the highest discriminant power for varietal differentiation. The approach reported may have practical application in better understanding, defining, managing, and communicating the varietal or geog. typicity of monovarietal VOOs.

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Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 5-Methylfuran-2(3H)-one(SMILESS: O=C1OC(C)=CC1,cas:591-12-8) is researched.HPLC of Formula: 16004-15-2. The article 《Enantioselective vinylogous Michael addition of β,γ-unsaturated butenolide to 2-iminochromenes》 in relation to this compound, is published in New Journal of Chemistry. Let’s take a look at the latest research on this compound (cas:591-12-8).

An efficient organocatalyzed asym. synthesis of 2-amino-4-(2-furanone)-4H-chromene-3-carbonitriles via vinylogous Michael addition of non-activated β,γ-unsaturated butenolide to 2-iminochromenes was realized.

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Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Catalytic co-pyrolysis of seaweeds and cellulose using mixed ZSM-5 and MCM-41 for enhanced crude bio-oil production, published in 2021-01-31, which mentions a compound: 591-12-8, mainly applied to Enteromorpha clathrata cellulose zeolite catalytic pyrolysis bio oil, Safety of 5-Methylfuran-2(3H)-one.

Catalytic co-pyrolysis of seaweed Enteromorpha clathrata (EN) and cellulose (CEL) with catalysts ZSM-5 and MCM-41 was investigated by TG, Py-GC/MS and fixed-bed experiments The effects of temperature, catalysts, seaweed and cellulose ratio were examined on product yields distribution and bio-oil compositions by catalytic co-pyrolysis. The maximum bio-oil yield was recorded at the ratio of 1:1 (EN and CEL) with ZSM-5/MCM-41 at 500°C on co-pyrolytic process. The interaction of radicals and faster heat transfer rate of EN/CEL induces the synergistic effects with catalysts. The advantage of mesoporous mol. sieve along with acidic microporous zeolite of ZSM-5/MCM-41 improved the cracking, dehydration, decarbonylation, decarboxylation, dealkylation, aromatization, oligomerization and deamination reactions. The overall study revealed that the amount of N-containing compounds were decreased and significantly elevated bio-oil production with increased furans and aromatics

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Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5-Methylfuran-2(3H)-one( cas:591-12-8 ) is researched.Electric Literature of C5H6O2.Hu, Yamin; Wang, Haiwen; Lakshmikandan, Manogaran; Wang, Shuang; Wang, Qian; He, Zhixia; Abomohra, Abd El-Fatah published the article 《Catalytic co-pyrolysis of seaweeds and cellulose using mixed ZSM-5 and MCM-41 for enhanced crude bio-oil production》 about this compound( cas:591-12-8 ) in Journal of Thermal Analysis and Calorimetry. Keywords: Enteromorpha clathrata cellulose zeolite catalytic pyrolysis bio oil. Let’s learn more about this compound (cas:591-12-8).

Catalytic co-pyrolysis of seaweed Enteromorpha clathrata (EN) and cellulose (CEL) with catalysts ZSM-5 and MCM-41 was investigated by TG, Py-GC/MS and fixed-bed experiments The effects of temperature, catalysts, seaweed and cellulose ratio were examined on product yields distribution and bio-oil compositions by catalytic co-pyrolysis. The maximum bio-oil yield was recorded at the ratio of 1:1 (EN and CEL) with ZSM-5/MCM-41 at 500°C on co-pyrolytic process. The interaction of radicals and faster heat transfer rate of EN/CEL induces the synergistic effects with catalysts. The advantage of mesoporous mol. sieve along with acidic microporous zeolite of ZSM-5/MCM-41 improved the cracking, dehydration, decarbonylation, decarboxylation, dealkylation, aromatization, oligomerization and deamination reactions. The overall study revealed that the amount of N-containing compounds were decreased and significantly elevated bio-oil production with increased furans and aromatics

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Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 5-Methylfuran-2(3H)-one(SMILESS: O=C1OC(C)=CC1,cas:591-12-8) is researched.Quality Control of Mesitylcopper(I). The article 《Rapid microwave-assisted polyol synthesis of TiO2-supported ruthenium catalysts for levulinic acid hydrogenation》 in relation to this compound, is published in Catalysts. Let’s take a look at the latest research on this compound (cas:591-12-8).

One wt% Ru/TiO2 catalysts prepared by a one-pot microwave-assisted polyol method have been shown to be highly active for Levulinic acid hydrogenation to γ-Valerolactone. Preparation temperature, microwave irradiation time and choice of Ru precursor were found to have a significant effect on catalyst activity. In the case of Ru(acac)3-derived catalysts, increasing temperature and longer irradiation times increased catalyst activity to a maximum LA conversion of 69%. Conversely, for catalysts prepared using RuCl3, shorter preparation times and lower temperatures yielded more active catalysts, with a maximum LA conversion of 67%. Catalysts prepared using either precursor were found to contain highly dispersed nanoparticles <3 nm in diameter XPS anal. of the most and least active catalysts shows that the catalyst surface is covered in a layer of insoluble carbon with surface concentrations exceeding 40% in some cases. This can be attributed to the formation of large condensation oligomers from the reaction between the solvent, ethylene glycol and its oxidation products, as evidenced by the presence of C-O and C = O functionality on the catalyst surface. In some applications, this compound(591-12-8)Category: pyrimidines is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5-Methylfuran-2(3H)-one( cas:591-12-8 ) is researched.Recommanded Product: 591-12-8.Mafokoane, M.; Seguel, J.; Garcia, R.; Diaz de Leon, J. N.; Sepulveda, C.; Escalona, N. published the article 《Conversion of levulinic acid using CuO/WO3(x)-Al2O3 catalysts》 about this compound( cas:591-12-8 ) in Catalysis Today. Keywords: tungsten oxide alumina supported copper monoxide catalyst; levulinic acid conversion. Let’s learn more about this compound (cas:591-12-8).

The CuO/WO3(x)-Al2O3 catalysts were tested for the conversion of levulinic acid into chems. of high added-value compounds The WO3(x)-Al2O3 modified supports with 5 different WO3 contents (2, 4, 6, 8, and 10 wt%) were prepared by the wet impregnation method, consequently 5 wt% CuO was impregnated on the modified supports. The optimum catalytic activity was obtained with CuO/WO3(6%)-Al2O3 catalyst, which was directly related to the highest acidity of the catalyst showed by NH3-TPD and acid strength by titration anal. The distribution of products observed on CuO/WO3(x)-Al2O3, was correlated with a change in acid site type and acid strength. The changes in the acidity by the addition of CuO over modified support was attributed to structural changes (distortions) stabilizing the active phase. This distortion is increasing the acidity strength, and favoring a higher catalytic activity with changes in the selectivity in function of CuO content over WO3(x)-Al2O3 modified support, obtaining the maximum formation of 2-MTHF and possibly other higher value-added chems. from GVL such as: 1,4-pentanediol, pentenoic acid, pentanoic acid, 2-pentanol, and gaseous products were on CuO/WO3(6%)-Al2O3 catalyst.

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Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5-Methylfuran-2(3H)-one( cas:591-12-8 ) is researched.Name: 5-Methylfuran-2(3H)-one.Wei, Yunlong; Zhang, Hong; Wu, Xinxin; Zhu, Chen published the article 《Alkene Difunctionalization Triggered by a Stabilized Allenyl Radical: Concomitant Installation of Two Unsaturated C-C Bonds》 about this compound( cas:591-12-8 ) in Angewandte Chemie, International Edition. Keywords: radical alkynylalkenylation enynylalkenylation alkenes dual function sulfone reagent; alkene difunctionalization; alkyne; allenyl radical; radical reactions; rearrangement. Let’s learn more about this compound (cas:591-12-8).

Radical-mediated difunctionalization of alkenes provides a promising approach to introduce one alkenyl or alkynyl group to target compounds However, simultaneous installation of two unsaturated C-C bonds via alkene difunctionalization remains elusive, attributable to the high instability and transient lifetimes of alkenyl and alkynyl radicals. Herein, we report the photocatalytic 1,2-alkynylalkenylation and 1,2-enynylalkenylation of alkenes for the first time, triggered by the intermol. addition of a stabilized allenyl radical to an alkene. A portfolio of strategically designed, easily accessible dual-function reagents are applied to a radical docking-migration cascade. The protocol has broad substrate scope and efficiently increases the degree of unsaturation

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Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5-Methylfuran-2(3H)-one( cas:591-12-8 ) is researched.Synthetic Route of C5H6O2.Thatikonda, Thanusha; Deepake, Siddharth K.; Das, Utpal published the article 《α-Angelica Lactone in a New Role: Facile Access to N-Aryl Tetrahydroisoquinolinones and Isoindolinones via Organocatalytic α-CH2 Oxygenation》 about this compound( cas:591-12-8 ) in Organic Letters. Keywords: tetrahydroisoquinolinone preparation; isoindolinone preparation; tetrahydroisoquinoline oxygenation organocatalyst; isoindoline oxygenation organocatalyst. Let’s learn more about this compound (cas:591-12-8).

A method for the direct oxidation of various N-aryl tetrahydroisoquinolines and isoindolines to the corresponding lactams using α-angelica lactone as a catalyst was developed. The utility of the method was further demonstrated by synthesis of indoprofen and indobufen.

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So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Gupta, Vijay; Sahu, Debashish; Jain, Shailja; Vanka, Kumar; Singh, Ravi P. researched the compound: 5-Methylfuran-2(3H)-one( cas:591-12-8 ).Computed Properties of C5H6O2.They published the article 《Diastereoselective multi-component tandem condensation: synthesis of 2-amino-4-(2-furanone)-4H-chromene-3-carbonitriles》 about this compound( cas:591-12-8 ) in Organic & Biomolecular Chemistry. Keywords: amino furanone chromene carbonitrile diastereoselective synthesis; multicomponent tandem Knoevenagel Pinner vinylogous Michael condensation sequence. We’ll tell you more about this compound (cas:591-12-8).

A general strategy for a one-pot stereoselective synthesis of 2-amino-4-(2-furanone)-4H-chromene-3-carbonitriles by reaction of salicylaldehyde, malononitrile and butenolides via a tandem Knoevenagel/Pinner/vinylogous Michael condensation is presented. The β,γ-butenolides gave a syn-selective MCR adduct with a dr up to 11.5 : 1. The mechanistic insight into the MCR was obtained by DFT calculations

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