Cyclopent[a]indene (benzopentalene): Generation by flash vacuum pyrolysis and subsequent dimerisation
作者:Roger F.C. Brown、Neil Choi、Karen J. Coulston、Frank W. Eastwood、Ulfert E. Wiersum、Leonardus W. Jenneskens
DOI:10.1016/s0040-4039(00)73368-5
日期:1994.6
Cyclopent[a]indene (benzopentalene, 7) is generated by flash vacuum pyrolysis of 3-phenylphthalic anhydride (6), biphenylene (3) or diphenic anhydride (4). It dimerises readily and adds cyclopentadiene above −70 °C, but it does not equilibrate at 900 °C with as-indacene (1).