Results 11 to 20 of about 14,858 (206)
Komplexchemie perhalogenierter Cyclopentadiene und Alkine, VII [PDF]
Journal of Organometallic Chemistry, 1990 Coordination Chemistry of Perhalogenated Cyclopentadienes and Alkynes, VII1). - Synthesis of Several Tetrachlorometalloles of Cobalt, Rhodium, and Iridium; Structure of a Iridacyclopentadiene Derivative The reaction of dichloroethyne with CpCo(PPh3)2 ...
Clarke +15 more
core +8 more sources
Dual-Mode Thio-MacMillan Organocatalysts: Stereoselective Diels-Alder Reactions or Sacrificial Self-Cyclization to N-Bridged Bicyclic Lactams. [PDF]
ChemistryThe study of the Diels–Alder reaction of cinnamaldehyde and cyclopentadiene, catalyzed by chiral imidazolidine‐4‐thiones, led to the discovery of a highly regio‐ and stereoselective Michael‐addition and consecutive ring closure. Here, the imidazolidine‐4‐thione not only catalytically activates cinnamaldehyde but also participates as the nucleophile to ...
Ebeling MSR +5 more
europepmc +2 more sources
Multistate Azobenzene-Norbornadiene Photoswitches for Molecular Solar Thermal Energy Storage. [PDF]
ChemistrySystems consisting of two different photoswitches (azobenzene and norbornadiene) are presented, which can be switched by light, store energy, and release it again. The combination of the switching units leads to synergistic effects. ABSTRACT The combination of two photochromic molecules into a multimodal photoswitch offers the potential to generate new
Arago G, Glüsenkamp KH, Haberhauer G.
europepmc +2 more sources
Click Chemistry with Cyclopentadiene
Chemical Reviews, 2021 Cyclopentadiene is one of the most reactive dienes in normal electron-demand Diels-Alder reactions. The high reactivities and yields of cyclopentadiene cycloadditions make them ideal as click reactions. In this review, we discuss the history of the cyclopentadiene cycloaddition as well as applications of cyclopentadiene click reactions. Our emphasis is
Brian J. Levandowski, Ronald T. Raines
openaire +3 more sources
Diels-Alder Cycloaddition of Cyclopentadiene to a Bis-naphthoquinone
Molecules, 2000 Addition of cyclopentadiene to bis-naphthoquinone (1) afforded predominantly the endo-endo [4+2] cycloadduct (2).
Letecia J. Duncalf, Margaret A. Brimble
doaj +1 more source
Gas phase carbon acidity and correlations with aqueous pK~a~ values: A comparison of B3LYP/6-311++G(d,p), Gaussian-4 (G4), and experimental approaches [PDF]
, 2010 Gas phase standard state (298.15 K, 1 atm) calculations were conducted at the B3LYP/6-311++G(d,p) density functional and the Gaussian-4 (G4) composite method levels of theory to estimate the acidity of various carbon acids.
Kaya Forest, Sierra Rayne
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Trimethylsilyl-substituted cyclopentadienes [PDF]
Canadian Journal of Chemistry, 1970 An account is given of the migratory behavior of the silyl group and of hydrogen in trimethylsilyl-substituted cyclopentadienes. The reaction of trimethylsilylcyclopentadiene with dimethyl sulfoxide is described.
S. McLean, G. W. B. Reed
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Nebenprodukte bei der Fulven-Synthese nach Thiele
CHIMIA, 1981 Although it is well known that the base-catalysed condensation of cyclopentadiene with carbonyl compounds (according to Thiele) gives good yields with ketones and extremely low yields with aliphatic aldehydes, the reasons for this failure have been ...
Markus Neuenschwander, Ueli Schädeli
doaj +1 more source
Thermal behaviour of CpCuPEt3 in gas phase and Cu thin films processing [PDF]
, 2007 Decomposition of CpCuPEt3 (Cp=NNN(η5-C5H5)) and MOCVD of Cu films from CpCuPEt3 have been investigated in the frame of an ongoing project on the processing of Cu-containing coatings.
Gleizes, Alain +7 more
core +4 more sources
Molecules, 2000 A computational study was performed in order to rationalize the high exo stereoselectivity in the cycloaddition reactions of sugar-derived dienophiles with cyclopentadiene.
S. C. Pellegrinet +3 more
doaj +1 more source