2-Alkyl-3,3-dichlorospiro[cyclopropane-1,9′-fluorene] derivatives (4) were obtained by the addition of CCl2 to 9-alkylidenefluorenes. Ringopeningreactions of 4 with bases gave enynes, butadienes, or butatrienes.
Influence of Electron-Donor Sensitizers on SET-Promoted Photochemical Reactions of β,γ-Unsaturated Aldehydes
作者:Diego Armesto、Maria J. Ortiz、Antonia R. Agarrabeitia、Mar Martin-Fontecha
DOI:10.1021/ol049263e
日期:2004.6.1
beta,gamma-Unsaturated aldehydes undergo photochemical oxa-di-pi-methane and decarbonylation reactions using DMN as an electron-donor sensitizer, whereas, using DMA, other photoproducts resulting from proton abstraction by ketyl- and alkene-centered radical-anions are also obtained.
Malladi, Rama R.; Kabalka, George W., Journal of Chemical Research - Part S, 2002, # 5, p. 224 - 225
作者:Malladi, Rama R.、Kabalka, George W.
DOI:——
日期:——
Reactions of some cyclopropanes activated by a spiro-linked fluorene. Importance of electronic matching of a reacting partner in thermal cycloaddition with TCNE and ring-opening dehydrogenation with DDQ