Diphenylmethylidenecyclobuta[a]cyclopropa[d]benzene: synthesis and spectral characterization.
[reaction: see text] The first derivative of the novel and highly strained rocketene (cyclobuta[a]cyclopropa[d]benzene) 5, namely, the C4 diphenyl-substituted exocyclic alkene 8, has been prepared in 16% overall yield as a yellow oil with properties fully consistent with its highly strained nature.
Halton
Brian
B
School of Chemical & Physical Sciences, Victoria University of Wellington, P.O. Box 600, New Zealand. brian.halton@vuw.ac.nz
Dixon
Gareth M
GM