Heterocycles with Oxygen (O)

Applications Used in the preparation of antifungal agents.
References Del Poeta, M. et al.; Antimicrob. Agents Ch., 42, 2495 (1998)

Applications 2,5-Bis(aminomethyl)tetrahydrofuran

Applications 5-Formylfuran-2-carboxylic Acid is a compound useful in organic synthesis.
References Nocito, F., et al.: ACS Omega, 3, 18724 (2018); Chen, G., et al.: Ind. Eng. Chem. Res., 57, 16172 (2018)

Applications 2-((Methyldisulfanyl)methyl)tetrahydrofuran is a useful compound in organic chemistry.

Applications 2,3:5,6-Di-O-isopropylidene-alpha-D-mannofuranose (cas# 14131-84-1) is a useful research chemical.

Applications Intermediate used to produce a variety of pharmaceutical agents, such as analgesic compounds and retinoic acid receptor (RAR) antagonists.
References Caldwell, J.; et al.: Bioorg. Med. Chem. Lett., 17, 2281 (2007), Tashiro, T., et al.: Biosci., Biotechnol., Biochem., 72, 2398 (2008),

Applications N-​(3-​Dibenzofuranyl)-​5-​nitro-2-​furancarboxamide is synthesized from Dibenzo[b,d]furan-3-amine (D418205), which is a building block used as a reactant in the preparation of dibenzofuryl(phosphonomethyl)alanines as endothelin converting enzyme inhibitors.
References De Lombaert, S., et al.: J. Med. Chem., 43, 488 (2000);

Applications N-(furan-3-ylmethyl)cyclohexanamine (cas# 462068-58-2) is a useful research chemical.

Applications 5-Fluorobenzofuran-3-one

Applications 5-Bromo-7-ethyl-2-formyl-benzofuran (cas# 137206-73-6) is a compound useful in organic synthesis.

Applications Methyl 5-bromofuran-2-carboxylate

Applications N-(2-acetyl-1-benzofuran-3-yl)-2-chloroacetamide (cas# 855715-46-7) is a useful research chemical.

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

Applications 5-[3-(Trifluoromethoxy)phenyl-2-Furancarboxylic Acid is the structural analogue of 5-[2-(Trifluoromethoxy)phenyl]-2-furancarboxylic Acid (T790925), a reactant used in the preparation of (phenyl)-N-[(mercapto)(pyrrolyl)triazolyl]furancarboxamide and (phenoxy)-N-[(mercapto)(pyrrolyl)triazolyl]acetamide derivatives as herbicides.
References Xue, S., Lu, C.: Youji Huaxue, 28, 1083 (2008)

Applications Benzofuran-3(2H)-one is a useful research chemical, an intermediate used in the catalytic asymmetric synthesis of chiral benzofuranones.
References Li, Y., et al.: Adv. Synth. Catal., 356, 1172 (2014); Huang, Z., et al.: Org. Lett., 19, 3524 (2017)

Applications (2S)-2-​Ethynyltetrahydro-​furan is a heterocyclic chemical reagent used in organic synthesis.

Applications Dibenzo[b,d]furan-2-sulfonic acid (cas# 83863-63-2) is a useful research chemical.

Applications 5-Formylfuran-2-boronic Acid Pinacol Ester could be useful for the diastereoselective synthesis of cyclic peptide macrocycles via Petasis borono-Mannich reaction
References Yamaguchi, A., et al.: Chem. Commun. (Cambridge, U. K.), 55, 10567 (2019)

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

Stability Volatile
Applications 3,4-Dimethylfuran (cas# 20843-07-6) is a compound useful in organic synthesis.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications 4,5-Dimethyl-3-hydroxy-2(5H)-furanone is a fragrant compound that is a key indicator of maple syrup urine disease, a disorder affecting newborn children that is the result of its inability to properly metabolize Valine (V094205), Leucine (L330110) and Isoleucine (I820175). 4,5-Dimethyl-3-hydroxy-2(5H)-furanone is naturally found in fenugreek seeds, and is an odourant present in sherry wines.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Blank, I., et al.: Prog. Flav. Prec. Stud., No vol. given, 103 (1993); Guerra, P. & Yaylayan, V.: J. Agr. Food Chem., 59, 4699 (2011); Mackenzie, D. & Woolf, L.: Brit. Med. J., 1, 90 (1959); Podebrad, F., et al.: J. Inh. Metab. Dis., 22, 107 (1999)

Applications 3-{4-[(furan-2-ylmethyl)sulfamoyl]phenyl}prop-2-enoic acid (cas# 391229-93-9) is a useful research chemical.

Applications Methyl 2-Deoxy-D-erythropentafuranose 5-(2,2-Dimethylpropanoate) is an intermediate for the synthesis of 2-Deoxy-D-threopentofuranoside.

Applications 5-(Aminomethyl)furan-2-carboxylic Acid Hydrochloride is a useful reagent in the preparation of novel heteroaromatic substrates of GABA aminotransferase.
References Hawker, D. D., et al.: Bioorg. Med. Chem., 20, 5763 (2012)

Applications 2-Carboxyfuran-5-boronic acid, pinacol ester

Applications (S)-4,4,7A-TRIMETHYL-5,6,7,7A-TETRAHYDROBENZOFURAN-2(4H)-ONE (cas# 15356-74-8) is a useful research chemical.

Applications 5-Formylfuran-2-boronic Acid Neopentyl Glycol Ester is a useful reagent in lapatinib synthesis.
References Radl, S., et al.: PCT Int. Appl. (2014), WO 2014059956 A1

Applications 2-(Ethoxymethyl)furan (cas# 6270-56-0) is a useful research chemical.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications 6-Chloro-1-benzofuran-2-carboxylic Acid is used to prepare cis-diaminocyclohexane derivatives as factor Xa inhibitors. It is also used to synthesize tachykinin NK2 receptor antagonists.
References Bioorg. Med. Chem., 17, 8206 (2009); Gensini, M., et al.: ChemMedChem, 5, 65 (2010)

Applications 2-((Tetrahydrofuran-2-yl)methoxy)phenoxy)tetrahydro-2H-pyran is an intermediate used in the synthesis of Bufetolol (B689435), a β-adrenergic blocking agent and it inhibits the activation of adenyl cyclase.
References Ikegami, K., and Imamura, H.: Yakugaku Zasshi 96, 614 (1976); Yamaji, A., et al.: Yakugaku Zasshi 105, 1179 (1985)

Applications 5-[2-(Trifluoromethoxy)phenyl]-2-furancarboxylic Acid is a reactant used in the preparation of (phenyl)-N-[(mercapto)(pyrrolyl)triazolyl]furancarboxamide and (phenoxy)-N-[(mercapto)(pyrrolyl)triazolyl]acetamide derivatives as herbicides.
References Xue, S., Lu, C.: Youji Huaxue, 28, 1083 (2008)

Applications 7-Bromo-1-benzofuran
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications 5-HYDROXY-4-PROPYL-5H-FURAN-2-ONE (cas# 78920-10-2) is a useful research chemical.

Applications cis-2,5-Dimethyltetrahydrofuran is a byproduct of the catalytic conversion of sugars and polyols to biomass-derived carbohydrates. Dihydrofuranyl derivative.
References West, R. et al.: Catalysis Today., 147, 115 (2009);

Applications Tetrahydro-3-furanmethanamine is an intermediate in the synthesis of Dinoteturan (D482100), a neonicotinoid insecticide.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Stability Moisture Sensitive
Applications 4,7-dimethyl-1,3-dihydro-2-benzofuran-1,3-dione (cas# 5463-50-3) is a useful research chemical.

Applications (5-Formylfuran-2-yl)boronic Acid is a reagent used in Suzuki cross-couplings with deactivated aryl bromides and activated aryl chlorides.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Trinh, T. N., et al.: Org. Biomol. Chem., 12, 9562-9571 (2014);

Applications 2,3-dihydro-2,2-dimethylbenzofuran-5-carboxylic acid (cas# 123656-34-8) is a useful research chemical.

Applications 2,5-Dihydrofuran is used in the synthesis of Sch 38516 aglycon (fluvirucin B1) an influenza A antibiotic.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Tomita, K. et al.: J. Antibiot., 44, 940 (1991); Houri, A. et al.: J. Am. Chem. Soc., 117, 2943 (1995);

Stability Hygroscopic
Applications Tetrahydrofuran-2,5-dicarboxylic Acid (cas# 2240-81-5) is a compound useful in organic synthesis.

Stability Moisture Sensitive
Applications (3R,4R)-Dihydro-3,4-bis(phenylmethoxy)-2,5-furandione is an intermediate in the synthesis of N-alkenylsuccinimide derivatives.
References Ohwada, J., et al.: Bull. Chem. Soc. Jap., 63, 287 (1990);

Impurity Darifenacin 5 Carboxymethyl Impurity/ Darifenacin Bromo Impurity
Applications 5-(2-Bromoethyl)-2,3-dihydrobenzofuran (cas# 127264-14-6) is a compound useful in organic synthesis.

Applications 2,5-Diacetoxy-2,5-dihydrofuran is used as a reagent to synthesize Mexicanin H, a biologically active sesquiterpene lactone that exhibits antiparasitic activity against Trypanosoma cruzi (a parasite that causes Chagas disease)
References Jimenez-Ortiz, V., et al.: Parasitology, 91, 170 (2005); Romo, J., et al.: Tetrahedron Lett., No vol. given, 1029 (1966)

Applications furan-2,5-dicarbohydrazide (cas# 26095-97-6) is a useful research chemical.

Applications 2-(oxiran-2-yl)furan (cas# 2745-17-7) is a useful research chemical.

Stability Air Sensitive, Unstable in DMSO
Applications 2,2-DIMETHYL-2,3-DIHYDRO-1-BENZOFURAN-5-THIOL (cas# 1248920-72-0) is a useful research chemical.

Applications 2,3-Dihydro-2,2,4,6,7-pentamethylbenzofuran is an 2,3-Dihydrobenzofuran derivative which is an important intermediate of medicines and agricultural chemicals.
References Kim, H. J., et al.: Hwahak Konghak, 43, 662-667 (2005)

Applications N-Dimethyl-(furan-3-ylmethyl)carbamothioyl)methanethioamide is an intermediate used in the synthesis of 3-((Furan-2-ylmethyl)imino]-N,N-dimethyl-3H-1,2,4-dithiazol-5-amine Hydrobromide (F864125), which is an insect chemosterilant and an agrochemical.

Applications Ethyl 5-amino-1-benzofuran-2-carboxylate is used as an synthetic intermediate in the preparation of indolebutylpiperazines, a class of dual 5-HT1A receptor agonists and serotonin reuptake inhibitors. Ethyl 5-amino-1-benzofuran-2-carboxylate was also used as a potential radiolabelled analog for melanoma imaging and targeted radiotherapy.
References Chezal, J.M., et al.: J. Medn. Chem., 51, 3133 (2008); Heinrich, T., et al.: J. Medn. Chem., 47, 4684 (2004);

Tetrahydro-a-(1-naphthalenylmethyl)-2-furanpropanoic Acid 2-(Diethylamino)ethyl Ester is a fatty acid analog that has antimicrobial properties. It is used in the treatment of bone cancer, and can be used to diagnose and treat other diseases such as glomerular filtration rate, receptor binding, and malonic acid. Tetrahydro-a-(1-naphthalenylmethyl)-2-furanpropanoic Acid 2-(Diethylamino)ethyl Ester binds to receptors on cells, which leads to an increase in the amount of monoamine neurotransmitters released by the cells.