An efficient catalytic method for fulvene synthesis
作者:Necdet Coşkun、Ihsan Erden
DOI:10.1016/j.tet.2011.09.036
日期:2011.11
added water and solvent on the condensation of carbonyl compounds with cyclopentadiene in the presence of secondary amines were investigated. Based on these studies, a new efficient and green synthesis of fulvenes was developed.
The thermal decomposition of fulvene endoperoxides ordinarily proceeds via an allene oxide intermediate affording oxepin-2(3H)-one derivatives. We have now uncovered new, unusual pathways in these decompositions where the presence of a hydroxyl group on the alkyl or aryl attached to the fulvene exocyclic double bond has a profound effect on the fate of the reactive intermediates derived from the unstable
Experimental and Theoretical Exploration of the Kinetics and Thermodynamics of the Nucleophile-Induced Fragmentation of Ylidenenorbornadiene Carboxylates
作者:Abigail D. Richardson、Scott J. L’Heureux、Ava M. Henry、Elizabeth A. McDonough、Cameron J. Fleischer、Cameron C. McMullen、Trevor R. Reynafarje、Gisele P. Guerrero、Quinn E. Williams、Qingyang Zhou、David M. Malouf、Spencer E. Thurman、Julia E. Soeller、Jerry Y. Sheng、Erica A. Medhurst、Angel E. Canales、Ty B. Cecil、K. N. Houk、Philip J. Costanzo、Daniel A. Bercovici
DOI:10.1021/acs.joc.3c00980
日期:2023.8.18
calculations were performed to investigate the mechanism of fragmentation and support an asynchronous retro-[4 + 2] cycloaddition transition state. The computations generally correlated well with the observed free energies of activation for four diastereomers of the model system as a whole, within 2.6 kcal/mol. However, the observed order of the fragmentation rates across the set of diastereomers deviated from
Ylidenenorbornadiene Carboxylates: Experimental Kinetic Analysis of a Nucleophile-Induced Fragmentation Reaction
作者:David M. Malouf、Abigail D. Richardson、Scott J. L’Heureux、Elizabeth A. McDonough、Ava M. Henry、Jerry Y. Sheng、Erica A. Medhurst、Angel E. Canales、Cameron J. Fleischer、Ty B. Cecil、Spencer E. Thurman、Cameron C. McMullen、Philip J. Costanzo、Daniel A. Bercovici
DOI:10.1021/acs.orglett.2c00630
日期:2022.4.22
Synthesis of new fulvene derivatives
作者:David B. Knight、James C. Burnette、Randall W. Hall、Gregory H. Lambeth