Results 171 to 180 of about 14,858 (206)
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Experiments with cyclopentadiene
Journal of Chemical Education, 1951The experiments outlined here serve to illustrate the processes of polymerization and depolymerization, the Diels-Alder reaction, and the presence of a reactive methylene group in cyclopentadiene.
E. C. Wagner, William C. Hunt
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Chloromercuration of cyclopentadiene
Journal of Inorganic and Nuclear Chemistry, 1964Abstract Conditions are described for the complete chloromercuration of cyclopentadiene to provide C 5 (HgCl) 6 , and similarly for the formation of C 5 (HgC 2 H 3 O 2 ) 6 . Under other conditions, less extensive substitution results. Limited observations on properties and reactions of C 5 (HgCl) 6 are recorded.
G.W. Watt, L.J. Baye
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Pyrolytic Hydrocarbon Growth from Cyclopentadiene
The Journal of Physical Chemistry A, 2010Aromatic hydrocarbon growth from cyclopentadiene (CPD) was studied using a laminar flow reactor operating in the temperature range 550-950 °C without oxygen. Benzene, indene, and naphthalene were the major products, which is in agreement with the previous computational studies on the reaction pathways from CPD.
Do Hyong, Kim +3 more
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Dehydrobenzol und Cyclopentadien
Chemische Berichte, 1958AbstractDas bei der Grignard‐Reaktion von o‐Fluor‐brombenzol intermediär entstehende Dehydrobenzol vereinigte sich mit Cyclopentadien im Sinne einer Diensynthese zum Kohlenwasserstoff V, dessen Struktur bewiesen wurde. Das im Zuge der Konstitutionsermittlung hergestellte Diazomethan‐Addukt IXa ließ sich beim Erhitzen mit Kupferpulver in das desmotrope ...
Georg Wittig, Erhard Knauss
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The Journal of Chemical Physics, 1965
The microwave spectra of the three monosubstituted 13C species of cyclopentadiene have been investigated. The effective rotational constants of these species together with those of the main isotopic species give the structural parameters for the ring. Labeling the methylene carbon as C1 and numbering the other carbons sequentially we obtain: r(C1C2)=1 ...
LeRoy H. Scharpen, Victor W. Laurie
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The microwave spectra of the three monosubstituted 13C species of cyclopentadiene have been investigated. The effective rotational constants of these species together with those of the main isotopic species give the structural parameters for the ring. Labeling the methylene carbon as C1 and numbering the other carbons sequentially we obtain: r(C1C2)=1 ...
LeRoy H. Scharpen, Victor W. Laurie
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Cyclopentadiene and Cyclopentene
2016The article contains sections titled: 1. Cyclopentadiene and Dicyclopentadiene 1.1. Physical Properties 1.2. Chemical Properties 1.3. Production 1.4. Uses 2. Cyclopentene 2.1. Physical Properties 2.2. Chemical Properties 2.3. Production 2.4.
Martin Claus +5 more
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A NEW SYNTHESIS OF ETHYL CYCLOPENTADIENE FROM CYCLOPENTADIENE AND ETHYLENE
Chemistry Letters, 1975Abstract An equimolar mixture of 1-, and 2-ethyl cyclopentadiene was formed in vapor-phase thermal reaction of cyclopentadiene with ethylene.
Masamichi Akimoto +2 more
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Liebigs Annalen der Chemie, 1986
AbstractDichlor‐1,3‐bis(sulfonyl)cyclopentane (z.B. 12, 14, 19) sind durch Addition von Sulfensäurechloriden an Cyclopentadien und nachfolgende Oxidation erhältlich. Regio‐ und Stereoselektivität hängen von der Reihenfolge der einzelnen Reaktionsschritte ab.
Klaus Hartke +3 more
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AbstractDichlor‐1,3‐bis(sulfonyl)cyclopentane (z.B. 12, 14, 19) sind durch Addition von Sulfensäurechloriden an Cyclopentadien und nachfolgende Oxidation erhältlich. Regio‐ und Stereoselektivität hängen von der Reihenfolge der einzelnen Reaktionsschritte ab.
Klaus Hartke +3 more
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Synthetic Routes towards Multifunctional Cyclopentadienes
Chemistry – A European Journal, 2019AbstractCyclopentadiene, and more importantly its functionalized derivatives, are a cornerstone of synthetic chemistry. Nowadays, they find applications in (chiral) catalysis, as ligands for organometallic complexes with potential diagnostic and therapeutic applications, and many more.
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Metallverbindungen des Cyclopentadiens und Indens
Angewandte Chemie, 1955AbstractDie Verbindungen werden meist durch Umsetzungen von Halogeniden der Übergangsmetalle mit Cyclopentadienyl‐magnesiumbromid bzw. durch Reaktion geeigneter Verbindungen derselben mit Alkalisalzen des Cyclopentadiens in flüssigem Ammoniak oder auch Tetrahydrofuran dargestellt. Die Strukturaufklärung der ungeladenen Metall‐di‐cyclopentadienyle ergab
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