Fulvenes are the class of hydrocarbon obtained by formally cross-conjugating one ring and methylidene through a common exocyclic double bond.[1][2]
The name is derived from fulvene, which has one pentagonal ring. Other examples include methylenecyclopropene (triafulvene) and heptafulvene.
^Agranat, Israel (2012), "Ground-State Versus Excited-State Polarity of Triafulvenes: A Study of Solvent Effects on Molecular Electronic Spectra", The Jerusalem Symposia on Quantum Chemistry and Biochemistry, 8: 573–583, doi:10.1007/978-94-010-1837-1_36
^Neuenschwander, Markus (1986), "Synthetic and NMR spectroscopic investigations of fulvenes and fulvalenes" (PDF), Pure Appl. Chem., 58 (1): 55–66, doi:10.1351/pac198658010055
credited with discovering this reaction. Modern synthesis of fulvenes employ buffer systems. Fulvenes are common ligands and ligand precursors in organometallic...
chemrev.6b00210. PMID 28151643. Bergmann, E. D. (1968). "Fulvenes and Substituted Fulvenes". Chemical Reviews. 68: 41–84. doi:10.1021/cr60251a002. Kaplan...
exocyclic double bond attached. Methylenecyclopropene is the smallest of the fulvenes (a family of unstable, cyclic molecules, conjugated transversally with...
([22]-annulene) Wikimedia Commons has media related to Annulenes. Annulyne Circulene Fulvenes IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997)...
exocyclic double bond. The name is derived from the similarly structured fulvenes which lack one ring. Pentafulvalene (2) is also called simply fulvalene...
Neuenschwander, Markus (1986), "Synthetic and NMR spectroscopic investigations of fulvenes and fulvalenes" (PDF), Pure Appl. Chem., 58 (1): 55–66, doi:10.1351/pac198658010055...
Perchlorofulvalene (C4Cl4C)2 is quite stable in contrast to fulvalene itself. Fulvenes, (CH=CH)2C=CH2 and substituted derivatives Tetrathiafulvalene, C2H2S2C=CS2C2H2...
the π-Electronic Structure of Singlet, Triplet, and Quintet States of Fulvenes and Fulvalenes Using the Electron Localization Function". The Journal of...
Anke T, Scherer A, Steglich W. (1990). "Leaianafulvene, a sesquiterpenoid fulvene derivative from cultures of Mycena leaiana". Phytochemistry 12: 3942–3944...
They were re-investigating a reaction between maleic anhydride and a fulvene first reported in 1929 by Otto Diels and Kurt Alder. They observed that...
diethyl ether at −45 °C. It can also be formed in low yield (along with fulvene and Dewar benzene) by irradiation of benzene at 237 to 254 nm. The hydrocarbon...
macrocylic and acyclic triynes with Group 6 metal carbonyls. The formation of fulvene and benzene". J. Am. Chem. Soc. 106 (26): 8315. doi:10.1021/ja00338a063...
dienes, the larger ketene substituent is placed in the endo position. Fulvenes typically react in the ring, leaving the double bond intact. (6) Ketenes...
Particularly, lipophilic titanocene dichloride derivatives derived from fulvenes were synthesised in structural diversity and this led to the development...
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