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Cyclopentenone Derivatives (cyclopentenone + derivative)

Distribution by Scientific Domains
Chemistry100%

Selected Abstracts

One-Pot Synthesis of Bicyclic Fused Cyclopentenone Derivatives from 1-Ethynylcycloalkanols and Aldehydes

CHEMCATCHEM, Issue 5 2010
Victorio Cadierno Dr.
Give ,em enough Rupe: A straightforward route to bicyclic fused cyclopentenone derivatives, involving a Rupe rearrangement/aldol condensation/Nazarov cyclization sequence, has been developed starting from readily available 1-ethynylcycloalkanols and aldehydes in the presence of the 16- electron allyl-ruthenium(II) precatalyst [Ru(,3 -2-C3H4Me)(CO)(dppf)][SbF6] and trifluoroacetic acid. [source]

ChemInform Abstract: A General and Regioselective Synthesis of Cyclopentenone Derivatives Through Nickel(0)-Mediated [3 + 2] Cyclization of Alkenyl Fischer Carbene Complexes and Internal Alkynes.

CHEMINFORM, Issue 14 2008
Jose Barluenga
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]

Molecular Diversity from Tonghaosu Analogues, Selective Reduction of the endo-Cyclic Double Bond of Tonghaosu Analogues and the Synthesis of Cyclopentenone Derivatives.

CHEMINFORM, Issue 23 2003
Biao-Lin Yin
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Synthesis of Imidazole Derivatives with Antimycobacterial Activity

ARCHIV DER PHARMAZIE, Issue 1 2010
Pedro O. Miranda
Abstract 4-Substituted 1-(p -methoxybenzyl)imidazoles were designed and synthesized in order to mimic parts of the structure of highly potent antimycobacterial 6-aryl-9-(p -methoxybenzyl)purines. 4-Haloimidazoles were subjected to Pd-catalyzed cross-coupling in order to introduce a (hetero)aryl group, or they were converted to Grignard reagents and reacted with (hetero)arylaldehydes. Further transformations of the adducts gave a variety of potential antimycobacterials with different "spacers" between the imidazole and (hetero)aryl group. The adduct from furfural was rearranged to a cyclopentenone derivative when treated with methanol under acidic conditions. Several target compounds exhibited antimycobacterial activity in vitro (IC90 13 ,g/mL for the best inhibitors), but they were not as active as the most potent purines and pyrimidines synthesized before. [source]

One-Pot Synthesis of Bicyclic Fused Cyclopentenone Derivatives from 1-Ethynylcycloalkanols and Aldehydes

CHEMCATCHEM, Issue 5 2010
Victorio Cadierno Dr.
Give ,em enough Rupe: A straightforward route to bicyclic fused cyclopentenone derivatives, involving a Rupe rearrangement/aldol condensation/Nazarov cyclization sequence, has been developed starting from readily available 1-ethynylcycloalkanols and aldehydes in the presence of the 16- electron allyl-ruthenium(II) precatalyst [Ru(,3 -2-C3H4Me)(CO)(dppf)][SbF6] and trifluoroacetic acid. [source]