Category: 3194-15-8

COA of Formula: C7H8O2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1-(Furan-2-yl)propan-1-one, is researched, Molecular C7H8O2, CAS is 3194-15-8, about Preparation of thienyl and furyl-1,2,3-selenadiazoles. Author is Wang, Jianhua; Ku, Erban; Shi, Zhen; Wang, Xiaogang.

Four new thienyl and furyl-1,2,3-selenadiazole derivatives I (X = O, S; R = H, Me) were prepared in this paper. This reasonable mechanism was given for the ring-closure of substituted semicarbazones to the corresponding 1,2,3-selenadiazoles.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

COA of Formula: C7H8O2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 1-(Furan-2-yl)propan-1-one, is researched, Molecular C7H8O2, CAS is 3194-15-8, about Influencing the organoleptic stability of beer by variation of the technological parameters. Author is Narziss, L.; Back, W.; Miedaner, H.; Lustig, S..

Pilot and full scale trials were carried out organoleptically and by gas chromatog. on technol. influences on flavor stability of beer. A well-controlled protein solubilization of the malt (<41%) and kilning temperatures <85 0 were favorable. The same refers to mashing with low air content, low pH (5.2) and high mashing-in temperatures (620). Wort treatment should combine reduced thermal reactions and a low residual coarse sludge content. Fermentation at <120, as well as a controlled aeration at pitching, were favorable, while pure oxygen caused flavor-instable beers. At filtration and bottling, even a minimal oxygen pick-up, as well as and extensive heating, can diminish the efforts during the earlier stages. Although many compounds look similar to this compound(3194-15-8)COA of Formula: C7H8O2, numerous studies have shown that this compound(SMILES:O=C(C1=CC=CO1)CC), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Synthesis of ketones in the furan series》. Authors are Gol’dfarb, Ya. L.; Smorgonskii, L. M..The article about the compound:1-(Furan-2-yl)propan-1-onecas:3194-15-8,SMILESS:O=C(C1=CC=CO1)CC).Quality Control of 1-(Furan-2-yl)propan-1-one. Through the article, more information about this compound (cas:3194-15-8) is conveyed.

cf. C. A. 25, 2719. In the preparation of aryl and alkyl 2-furyl ketones from furan and acid chlorides with SnCl4 in C6H6 (cf. Reichstein, C. A. 24, 3781), the yields can be increased from about 15 to 45% by working in a large excess of solvent and the reversed addition of SnCl4 to the mixture of furan and acid chloride. In this way, the exothermic reaction of acid chloride with 2-furylstannic chloride and its polymerization products with the resulting excessive formation of decomposition products can be avoided. If an acid anhydride instead of chloride is used, the yields of ketones are increased up to 70%. To a mixture of 1 mol. of acid chloride or anhydride and furan in 175-500 ml. of dry C6H6 is added dropwise, with cooling, 1 mol. SnCl4 in C6H6, and the mixture is shaken for 30 min. and allowed to stand at room temperature 12-18 hrs. After decomposition with iced water, the reaction mixture is steam-distilled, the distillate and the black residue are extracted with Et2O, the extract is washed with 10% NaOH and water and, after drying with Na2SO4 and expelling the Et2O, the residue is fractionated. Me 2-furyl ketone, m. 29°, b. 174-5°, prepared from Ac2O in 64% yield; Et, b16 74-5°, 51% from (EtCO)2O; Pr, b14 88°, 70% from (PrCO)2O; Ph, b10 146-7°, 49% from Bz2O. Satisfactory results can be obtained by the use of AlCl3 instead of SnCl4.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Electric Literature of C7H8O2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 1-(Furan-2-yl)propan-1-one, is researched, Molecular C7H8O2, CAS is 3194-15-8, about Isomerization of Allylic Alcohols to Ketones Catalyzed by Well-Defined Iron PNP Pincer Catalysts. Author is Xia, Tian; Wei, Zhihong; Spiegelberg, Brian; Jiao, Haijun; Hinze, Sandra; de Vries, Johannes G..

[Fe(PNP)(CO)HCl] (PNP=di-(2-diisopropylphosphanyl-ethyl)amine), activated in situ with KOtBu, is a highly active catalyst for the isomerization of allylic alcs. to ketones without an external hydrogen supply. High reaction rates were obtained at 80 °, but the catalyst is also sufficiently active at room temperature with most substrates. The reaction follows a self-hydrogen-borrowing mechanism, as verified by DFT calculations An alternative isomerization through alkene insertion and β-hydride elimination could be excluded on the basis of a much higher barrier. In alc. solvents, the ketone product is further reduced to the saturated alc.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 1-(Furan-2-yl)propan-1-one, is researched, Molecular C7H8O2, CAS is 3194-15-8, about Effect of technological measures in malt, wort and beer production on aroma compounds relevant to beer aging, the main research direction is aroma compound malt wort beer production.Computed Properties of C7H8O2.

Several technol. parameters of brewing were investigated to evaluate the possible effects of the brewer on the flavor stability of beer. In these trials, beers were brewed on the pilot-scale. It was found that a higher proteolytic modification of the malt effected increased levels of compounds relevant to aging and produced an intensive aging aroma. Longer hot holding times of the wort in the whirlpool led to a deterioration of the flavor stability. Higher temperatures during the main fermentation brought an.

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Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called An efficient method for the determination of furan derivatives in apple cider and wine by solid phase extraction and high performance liquid chromatography-Diode array detector, published in 2013-04-05, which mentions a compound: 3194-15-8, Name is 1-(Furan-2-yl)propan-1-one, Molecular C7H8O2, Electric Literature of C7H8O2.

A reliable SPE-HPLC/DAD method was developed for the simultaneous separation and quantitation of 10 furan derivatives in apple cider and wine matrixes, including 5-hydroxymethyl-2-furaldehyde (5-HMFD), 4-hydroxy-2,5-dimethyl-3(2H)-furanone (4-HDMF), 2-furoic acid (2-FA), 2-furaldehyde (2-F), 3-furaldehyde (3-F), 2-acetylfuran (2-AF), 5-methyl-2-furaldehyde (5-MFD), Me 2-furoate (MFT), 2-propionylfuran (2-PF) and Et 2-furoate (EFT). All the compounds were satisfactorily separated on a C18 column in less than 30 min. The solid phase extraction parameters have been optimized, including the sorbent, sample volume, washing and elution solvent. The relative standard deviations (RSDs) (intra- and inter-day) of all analytes were less than 6.4% for apple cider at 5 mg/L spiking level and less than 3.9% (except 2-FA) for wine at 0.5 mg/L spiking level. The limits of detection (LOD) and limits of quantitation (LOQ) were low (LOD 0.002-0.093 mg/L, LOQ 0.01-0.31 mg/L) compared to the usual concentrations of these compounds in these food matrixes. The absolute recoveries of all compounds were higher than 77.8% (most of them were 80.5-103%) at different spiking levels (apple cider 0.5-50 mg/L). The results showed that the developed method was precise, sensitive, robust and of good selectivity.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 1-(Furan-2-yl)propan-1-one, is researched, Molecular C7H8O2, CAS is 3194-15-8, about Copper(I)-catalyzed N-H olefination of sulfonamides for N-sulfonyl enaminone synthesis.Product Details of 3194-15-8.

Copper-catalyzed N-H olefination of sulfonamides for enaminone synthesis using saturated ketones as olefin sources was reported. With TEMPO derivatives and O2 as oxidants, this method provided an efficient way to produce various enaminones in good yields. Mechanistic studies helped figure out the stable intermediates and develop novel methodologies for the difunctionalization of saturated ketones.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 1-(Furan-2-yl)propan-1-one( cas:3194-15-8 ) is researched.Formula: C7H8O2.Ho, Chi-Tang; Coleman, Edward C. published the article 《Chemistry of baked potato flavor: further identification of heterocyclic compounds in the volatile flavor of baked potato》 about this compound( cas:3194-15-8 ) in Journal of Food Science. Keywords: potato baked volatile flavor; odor potato baked. Let’s learn more about this compound (cas:3194-15-8).

The gas chromatog. fractions of a baked potato flavor that was isolated from 540 lb of Idaho Russet Burbank potatoes were analyzed by IR and mass spectrometry. Nine furans, 2 oxazoles, 3 thiophenes, 2 pyrroles, 2 pyridines, 1 dioxolane, and 1 trioxane were identified. Heterocyclic compounds with formyl or acetyl substituents had a characteristic nutty aroma.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

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 Chemical shifts in proton NMR spectra of 2-substituted furans and electrophilic constants σp+, published in 1980-07-31, which mentions a compound: 3194-15-8, mainly applied to furan NMR LFER; substituent constant NMR furan, SDS of cas: 3194-15-8.

Published values of substituent-induced chem. shift changes (Δδ) at H-5 of 2-substituted furans were correlated with σp+ constants by Δδ = 0.654 σp+ – 0.017. This equation was then used to find the σp+ constants of 15 substituents, including heterocyclic and oxime-containing groups.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Application In Synthesis of 1-(Furan-2-yl)propan-1-one. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 1-(Furan-2-yl)propan-1-one, is researched, Molecular C7H8O2, CAS is 3194-15-8, about Low molecular weight ingredients of smoked flavor preparations. Author is Baltes, Werner; Soechtig, Ingeborg.

The composition of 12 smoke flavor preparations from different manufacturers was determined by gas chromatog. on glass capillary columns. Of 70 compounds identified by mass spectrometry, the most important representatives of the phenolic fraction were determined quant. Sensory qualities of some characteristic compounds are described.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem