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Substituted Furans (substituted + furan)

Distribution by Scientific Domains
Chemistry100%

Selected Abstracts

ChemInform Abstract: FeCl3 -Catalyzed Propargylation,Isomerization Tandem Reaction: A Facile One-Pot Synthesis of Substituted Furans.

CHEMINFORM, Issue 15 2009
Wen-hua Ji
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]

Highly Substituted Furans from 2-Propynyl-1,3-dicarbonyls and Organic Halides or Triflates via the Oxypalladation-Reductive Elimination Domino Reaction.

CHEMINFORM, Issue 43 2003
Antonio Arcadi
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Synthesis of some thiazolyl and thiadiazolyl derivatives of substituted furan and pyrrole

JOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 1 2007
Seham Y. Hassan
Four series of substituted furan and pyrrole have been synthesized. The first series was prepared by cyclization of the key intermediates ethyl 5-[(4-substituted thiosemicarbazido)methyl]-2-methylfuran-3-carboxylates 2a-2d and 1-[(4-acetyl-5-methyl-1H -pyrrol-2-yl)methylene]-4-substituted thiosemicarbazides 8a-8d with chloroacetic acid or (ethyl bromoacetate) to afford the corresponding 4-oxo-3-substituted thiazolidin-2-ylidene 3a-3d or 3-substituted thiazolidin-4-one 9a-9d. On the other hand, heating of the intermediates 2a-2d or 8a-8d with acetic anhydride afforded the corresponding (N -substituted acetylamino)-2,3-dihydro-[1,3,4]thiadiazol-2-yl derivatives 4a-4d and [1,3,4]thiadiazol-2-yl- N -substituted acetamide 10a-10d respectively, while cyclization with p -bromophenacyl bromide gave rise to the corresponding 3-substituted thiazol-2-yl-ylidene 5a-5d and 11a-11d respectively. Furthermore, 4-oxo-3-substituted thioureido-thiazolidin-2-yl 6a-6d or 4-oxo-thiazolidin-3-yl-3-substituted thiourea 12a-12d were obtained by reaction of the intermediates 2a-2d or 8a-8d with thioglycolic acid. Some of the synthesized compounds showed promising antimicrobial activities. [source]

Gold(I)-Catalyzed Tandem Rearrangement,Nucleophilic Substitution of ,-Acetoxy Alkynyl Oxiranes or Aziridines: Efficient Approach to Furans and Pyrroles

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 9 2010
Aurélien Blanc
Abstract Highly substituted furans and pyrroles were efficiently formed by a new gold(I)-catalyzed tandem rearrangement,nucleophilic substitution of acetoxylated alkynyl oxiranes and aziridines in the presence of various nucleophiles. [source]