Synthesis of [3](1,1′)[3](3,3′)- and [4](1,1′)[4](3,3′)Ruthenocenophanes
作者:Shin-ichi Kamiyama、Akira Kasahara
DOI:10.1246/bcsj.57.719
日期:1984.3
[3](1,1′)[3](3,3′)- and [4](1,1′)[4](3,3′)Ruthenocenophanes were synthesized via cyclization of the propionic acid derivatives of [3](1,1′)- and [4](1,1′)ruthenocenophanes with polyphosphoric acid or trifluoroacetic anhydride, respectively. The 1H NMR, IR, and electronic spectra of these dibridged ruthenocenes were measured and compared with those of monobridged ruthenocenes.