Heterocycles with Oxygen (O)

Furan-2,5-diboronic acid, pinacol ester is a carboxylate that reacts with boron trihalides to form aryl boronic esters. Furan-2,5-diboronic acid, pinacol ester is used in the synthesis of organic compounds. Furan-2,5-diboronic acid, pinacol ester has been used as a catalyst for the metallation reaction and in the preparation of iridium catalysts. Furan-2,5-diboronic acid, pinacol ester can be used for the preparation of arene intermediates and metallation reactions. Furan-2,5-diboronic acid, pinacol ester has been shown to be an efficient reagent for synthesizing novel photochemical reaction intermediates.

Applications 2,5-Furandicarboxylic Acid Diethyl Ester (cas# 53662-83-2) is a compound useful in organic synthesis.

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3-Oxotetrahydrofuran is an organic compound that is classified as a heterocyclic compound. This chemical has a glycosidic bond with a hydroxyl group and a carbonyl group. 3-Oxotetrahydrofuran can be used to generate metal hydroxides, which are used in the synthesis of sodium-dependent glucose, or to reduce glucocorticoid receptors. 3-Oxotetrahydrofuran has been shown to have antioxidant properties and can be used for the treatment of inflammatory diseases and cancer. It also may act as an anti-inflammatory agent by inhibiting prostaglandin synthesis.

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2,3-Dihydro-1,4-dithiino[2,3-c]furan-5,7-dione is a coordination polymer that contains both an anhydride and a hydroxide group. It has been shown to form a coordination polymer with lithium hydroxide as the counterion. The topological spaces of the polymer are not limited by the size of the monomer unit. This coordination polymer has been shown to form through reaction with lithium hydroxide in water at room temperature.

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2,5-Dihydro-2,5-dimethoxy-2-dimethoxymethylfuran is a chemical compound that belongs to the group of reagents. It is used as a reaction component in organic synthesis and has been shown to be a useful scaffold for the development of new compounds. 2,5-Dihydro-2,5-dimethoxy-2-dimethoxymethylfuran is also a versatile building block for complex compounds and fine chemicals.

Furfural is a molecule with a spectrum that includes the frequencies at which it deforms. The deformation of the molecule can be seen in its nucleus and in the nitrate group. Furfural is an experimental compound that has yet to be studied in depth. It has been found to have three isomers, two of which are shown in this molecule. Furfural's nmr spectra have been measured and it has a molecular weight of 119.18 g/mol.

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4,5,6,7-Tetrafluoro-3',6'-dihydroxy-spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one is a fluorescent compound that has been used as a diagnostic agent in animal tissues. It can also be used to monitor the circulatory system. 4,5,6,7-Tetrafluoro-3',6'-dihydroxy-spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one is not active against cancer cells or bacteria. 4,5,6,7-Tetrafluoro-3',6'-dihydroxy-spiro-[isobenzofuran]-1(3H),9'-[9H]xanthen]-3-one is also sensitive to pH and will change color from yellow to red

Applications 5-hydroxy-2,5-dihydrofuran-2-one (cas# 14032-66-7) is a useful research chemical.

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3a-Methyl-5,6,7,7a-tetrahydro-4H-isobenzofuran-1,3-dione (MBF) is a reactive epoxy that can be used as a sealant. It has been shown to react with fatty acids and form epoxy esters. MBF also reacts with anhydrides to form polyesters. MBF has also been shown to be a potent inducer of cationic polymerization by reacting with hydroxyl groups on polymers. This reaction is reversible and the methylene groups are cleaved from the polymers to form new bonds with MBF. The resultant product is a cationic polymer that contains the hydroxyl group in place of the methylene group.

2-Methyl-4,5-dihydrofuran-3-thiolacetate is a flavouring agent that belongs to the class of dihydrofurans. It is a thioacetate that has a fruity, sweet and slightly musty odour. 2-Methyl-4,5-dihydrofuran-3-thiolacetate can be used in the manufacture of flavourings, such as ice cream and chewing gum.

1-Furan-3-yl-ethylamine oxalate is a heterocyclic compound that belongs to the class of heterocyclic compounds. It is an oxime, which is a chemical compound that contains both amine and ketone functional groups. The 1-furan-3-yl group is sequentially linked to the ethylamine group. The heterocyclic compounds are typically found in chemistry or biology. They are often used as starting materials for synthesis of other compounds, such as pharmaceuticals. 1-Furan-3-yl-ethylamine oxalate has been shown to be effective in the translation process by inhibiting methylimine formation during protein synthesis.

2,3-Dihydrobenzo[b]furan-5-carboxylic acid is a chiral compound that belongs to the group of liquid crystals. It has been shown to be an optically active, ferroelectric liquid crystal that can be used for responsive and orienting purposes. The 2,3-Dihydrobenzo[b]furan-5-carboxylic acid composition can be hydrolyzed by alkyl ester or chiral reagents to produce optical, crystalline dihydrobenzofuran. This compound has also been studied as a potential drug candidate for treatment of Alzheimer's disease due to its ability to inhibit the production of beta amyloid protein and prevent it from aggregating.

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2-(6-Hydroxybenzofuran-3-yl)acetic acid is a supramolecular compound that can exist in two different conformations and has been shown to function as a chiral switch. The crystal structure of 2-(6-hydroxybenzofuran-3-yl)acetic acid was determined using x-ray diffraction techniques, which revealed that the molecule adopts a centrosymmetric conformation. This conformation is thermodynamically more stable than the other possible conformation, which is not centrosymmetric. Simulation studies have also predicted that this molecule has vibrational modes with an absorption spectrum that spans over a wide range of wavelengths and overlaps with the wavelength ranges of many dyes and fluorophores.

5-Ethyl-4-hydroxy-2-methyl-3(2H)-furanone is a colorless liquid that has a fruity, sweet odor. It is used in the manufacture of flavors and fragrances. 5-Ethyl-4-hydroxy-2-methyl-3(2H)-furanone can be obtained by the reaction of butanedione with dilute sulfuric acid, followed by treatment with an absorber containing propylene glycol and 4-ethyl-2methoxyphenol. The product is then treated with radiation energy to produce furfural, which reacts with anthranilate to form methyl anthranilate. Methyl anthranilate can be converted into phenylmethyl by reacting it with glycosidase.

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4-Bromofuran-2-carboxylic acid is a white solid that is soluble in water and has a melting point of about 100°C. It can be prepared by the reaction of benzene with furan, followed by acetalization with dimethylformamide. The bromine atom in 4-bromofuran-2-carboxylic acid can be substituted with chlorine, which leads to the corresponding chloro derivative. This heteroaromatic compound can then be used as a starting material for other synthetic procedures. 4-Bromofuran-2-carboxylic acid has also been shown to react with nitro compounds to form nitrosobenzene derivatives.

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2-(Benzofuran-3-yl)acetic acid is a reactive compound with a molecular electrostatic potential that is high enough to be considered as a good nucleophile. It has been shown to react with butyric acid, a gaseous compound, in the presence of an electron donor such as indole-3-propionic acid or phenol. The reaction product of 2-(benzofuran-3-yl)acetic acid and butyric acid is called 2-(5H)-furanone. This type of reaction is called an electrophilic addition and can be used to produce fluorescent probes for detecting butyric acid or other gaseous compounds.

Applications 2-Hydroxytetrahydrofuran (cas# 5371-52-8) is a compound useful in organic synthesis.

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4-Chloroisobenzofuran-1,3-dione is a low energy aromatic hydrocarbon that has the potential to react with hydrogen fluoride to form a reactive anhydride. It is soluble in hydrochloric acid and sodium hydroxide solution. 4-Chloroisobenzofuran-1,3-dione can be synthesized by reacting phthalic anhydride and 3 nitrophthalic anhydride. The reaction solution produces a colorless liquid that can be purified by vacuum distillation.

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Diethyl 3,4-furandicarboxylate is a chemical compound that is used as an antiproliferative drug in cancer therapy. It is synthesized by the thermal isomerization of diethyl acetylenedicarboxylate. The product has been shown to inhibit the growth of human cancer cells and has antibacterial activity against Gram-positive bacteria. Diethyl 3,4-furandicarboxylate also inhibits the synthesis of DNA and RNA by binding to the enzyme ribonucleotide reductase. Its cytostatic effects are due to its ability to inhibit cellular proliferation by inhibiting protein synthesis.

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2-Methyltetrahydrofuran-3-one is a synthetic compound that has been identified as a potential aromatase inhibitor. It has been shown to inhibit the conversion of androstenedione to estrone in human breast cancer cells. 2-Methyltetrahydrofuran-3-one also had anticancer activity against p. aeruginosa, a bacterium that is resistant to many antibiotics. In addition, 2-methyltetrahydrofuran-3-one was shown to be safe for use in humans and animals in preliminary studies. This compound can be extracted from fruit extract using ethyl formate or caproic acid as solvents. Safety testing of this compound has indicated that it does not cause adverse effects at concentrations up to 10 mg/kg body weight when administered orally or intravenously. The chemical reactions of 2-methyltetrahydrofuran-3-one have been studied