R. Brown, N. Choi, K. Coulston
Jun 20, 1994
Citations
0
Influential Citations
27
Citations
Journal
Tetrahedron Letters
Abstract
Abstract 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 ).