Reactions of carbanions with 2,4-dinitrofluorobenzene leading to stable heptatrienide moieties
Reactions of NCCH2COOMe 1a and CH2(CN)2 1b with 2,4-dinitrofluorobenzene 2 at the presence of Et3 N result in deeply colored crystalline stable salts 4a,4b with anions that contain a system of conjugated bonds.
Gololobov, Yuri G.,Linchenko, Olesya A.,Petrovskii, Pavel V.,Starikova, Zoija A.,Garbuzova, Irina A.
New reaction of pyridinium ylide with 2,4,6-trinitrofluorobenzene leading to stable heptatrienide moiety
A new reaction of pyridinium ylide (4) with 2,4,6-trinitrofluorobenzene leading to stable negatively charged heptatriene moiety (6) is described. This reaction proceeds via a new route of decomposition of intermediate σ;-complex (5) occurring with the for
Gololobov, Yuri G.,Linchenko, Olesya A.,Petrovskii, Pavel V.,Khrustalev, Victor N.,Garbuzova, Irina A.