Reactions of ethyl bromodifluoroacetate in the presence of copper powder
作者:K. Sato、M. Omote、A. Ando、I. Kumadaki
DOI:10.1016/j.jfluchem.2003.11.023
日期:2004.4
We have examined the reaction of ethyl bromodifluoroacetate (1) in the presence of copper powder as a procedure for the synthesis of compounds containing a CF2 group. The complex formed in the above reaction reacted with vinyl or aryl iodides to give cross-coupling products, with Michael acceptors to give 1,4-addition products and with olefins to give radical addition products. The cross-coupling reaction
This invention relates to fluoromethylphosphonate derivatives of certain nucleosides, to methods for their preparation and to their use as antiviral and antitumoral agents.
A new strategy for the synthesis of fluorinated 3,4-dihydropyrimidinones
作者:Santos Fustero、Silvia Catalán、José Luis Aceña、Carlos del Pozo
DOI:10.1016/j.jfluchem.2009.06.001
日期:2009.12
A new family of 3,4-dihydropyrimidinones (DHPMs) bearing fluorinated substituents at C6 have been prepared from gem-difluorinated nitriles, alkyl 3-butenoates and iso(thio)cyanates. This novel Biginelli-type process relies on the γ-addition of the ester-derived enolate to fluorinatednitriles. A tandem nucleophilic addition aza-Michael reaction sequence completes the synthetic process.
The present disclosure provides processes for the preparation of a compound of formula I:
which is useful as an antiviral agent. The disclosure also provides compounds and processes for the preparation of the compounds that are synthetic intermediates to the compound of formula I.
Synthesis of Fluorinated and Non-Fluorinated Bicyclic Amidines through Ring-Closing Metathesis
作者:Ana C. Cuñat、Sonia Flores、Judit Oliver、Santos Fustero
DOI:10.1002/ejoc.201101091
日期:2011.12
An efficient method for the synthesis of fluorinated and non-fluorinated imidazoazepines by a ring-closing metathesis reaction as the key step is described. The influence of the fluorine atoms on the preparation of these bicyclic systems is also studied.