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Furan Derivatives (furan + derivative)
Selected AbstractsAlternative Coupling Reaction with Unactivated Furan DerivativesEUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 23 2009Marc-André Giroux Abstract Treatment of various dienimides in the presence of a Lewis acid and (trimethylsiloxy)furan leads to the corresponding aniline furan-2(5H)-ones. The same treatment with furan yields a triaryl product and, surprisingly, a byproduct with a pentacyclo[5.4.0.0.0.0]undecane main core. The formation of this birdcage system containing nine stereogenic centres was produced with complete diastereoselectivity.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) [source] ChemInform Abstract: Titanium(III) Chloride Mediated Synthesis of Furan Derivatives: Synthesis of (.+-.)-Evodone.CHEMINFORM, Issue 42 2010S. K. Mandal Abstract Title compounds (IV) and (VI) including the naturally occurring furanoterpene evodone (IVb) are synthesized by a radical cyclization reaction using titanocene(III) chloride, generated in situ from TiCl2(Cp)2 and zinc dust, as radical source. [source] ChemInform Abstract: Copper(II)-Catalyzed Highly Diastereoselective Three-Component Reactions of Aryl Diazoacetates with Alcohols and Chalcones: An Easy Access to Furan Derivatives.CHEMINFORM, Issue 36 2010Yingguang Zhu Abstract The title reaction affords ,-hydroxy ketone derivatives (IV) in high yield with excellent diastereoselectivity. [source] ChemInform Abstract: ,-N-Methyl/Phenyl Furan Derivatives as Dipolarophiles for Synthesis of Spiro Isoxazolidine Derivatives with ,-Chloro and Simple Nitrones.CHEMINFORM, Issue 36 2010Bhaskar Chakraborty No abstract is available for this article. [source] ChemInform Abstract: Cyclization of Allenyne-1,6-diols Catalyzed by Gold and Silver Salts: An Efficient Selective Synthesis of Dihydrofuran and Furan Derivatives.CHEMINFORM, Issue 27 2008Sundae Kim Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] A Novel Reaction of Vicinal Tricarbonyl Compounds with the Isocyanide-DMAD Zwitterion: Formation of Highly Substituted Furan Derivatives.CHEMINFORM, Issue 27 2006Vijay Nair Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] ChemInform Abstract: Cycloisomerization of 1,6-Enynes in Organoaqueous Medium: An Efficient and Eco-Friendly Access to Furan Derivatives.CHEMINFORM, Issue 38 2001Synthesis of a Key Intermediate of Podophyllotoxin. Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] One-Step Synthesis of a Naphtho[1,2-b]furan Derivative from Benzo[c]pyrylium Perchlorate.CHEMINFORM, Issue 44 2003A. V. Kibal'ny Abstract For Abstract see ChemInform Abstract in Full Text. [source] Lewis Acid-Mediated Selective Cycloadditions of Vinylidenecyclopropanes with Aromatic Aldehydes: An Efficient Protocol for the Synthesis of Benzo[c]fluorene, Furan and Furo[2,3- b]furan DerivativesADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 1-2 2009Chenliang Su Abstract Three kinds of Lewis acid-mediated reactions of vinylidenecyclopropanes and aromatic aldehydes are disclosed in this paper, providing an efficient and selective synthesis of a variety of functionalized benzo[c]fluorene, furan and furo[2,3- b]furan derivatives. [source] ChemInform Abstract: A Novel Three-Component Reaction of a Secondary Amine and a 2-Hydroxybenzaldehyde Derivative with an Isocyanide in the Presence of Silica Gel: An Efficient One-Pot Synthesis of Benzo[b]furan Derivatives.CHEMINFORM, Issue 2 2010Ali Ramazani Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Regioselectivities in Alkyne Activation: Synthesis of 2-(Bicyclo[3.1.0]hexan-1-yl)furan Derivatives by Au-Catalyzed Cyclization and Cyclopropanation.CHEMINFORM, Issue 14 2009Chang Ho Oh Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Synthesis of 9-Furylnaphtho[2,3-b]furan Derivatives.CHEMINFORM, Issue 13 2006Vladimir V. Mel'chin Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] ChemInform Abstract: An Efficient Diastereoselective One-Pot Synthesis of Dihydrofuro[2,,3,:2,3]indeno[2,1-b]furan Derivatives.CHEMINFORM, Issue 32 2002Issa Yavari Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Synthesis of 2,4-Furanophanes by Palladium-Catalyzed Macrocyclization Reactions of 1,n -Diallenyl DiketonesEUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 9 2004A. Stephen K. Hashmi Abstract The 1,n -diallenyl diketones 8a,j were prepared and subjected to reactions with the [PdCl2(MeCN)2] catalyst. Upon decreasing the length of the bridge between the allenyl ketone units, first we obtained the (E) isomer 10 as the macrocyclic product and then the (Z) isomer 11 accompanied by the exocyclic double bond isomer 12. In all cases, the open-chained 1,n -difuryl alkanes were isolated as side-products. The analogous preparation and conversion of the diallenyl diketones 19 and 24, which have even longer bridges and ether-functionalities, delivered the 20- to 52-membered macrocycles 21a, 21b, 26a, and 26b with only the expected (E) configuration of the double bond. The ring closure of a furan derivative, having vinyl groups in its substituents at the 2- and 4-positions, to a related product by Ru-catalyzed olefin metathesis delivered yields similar to the Pd-catalyzed macrocyclization, but provided a mixture of both double bond isomers. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004) [source] Lewis Acid-Mediated Selective Cycloadditions of Vinylidenecyclopropanes with Aromatic Aldehydes: An Efficient Protocol for the Synthesis of Benzo[c]fluorene, Furan and Furo[2,3- b]furan DerivativesADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 1-2 2009Chenliang Su Abstract Three kinds of Lewis acid-mediated reactions of vinylidenecyclopropanes and aromatic aldehydes are disclosed in this paper, providing an efficient and selective synthesis of a variety of functionalized benzo[c]fluorene, furan and furo[2,3- b]furan derivatives. [source] | ||||||||||