Etude des petits cycles—XXXVII: syntheses et proprietes spectrales du tetracyclopropylidene ([4] rotane) et des composes polycyclopropylspiraniques de la serie
JM Denis, P Le Perchec, JM Conia
文献索引：Denis,J.M. et al. Tetrahedron, 1977 , vol. 33, p. 399 - 408
The syntheses of [4] rotane and polycyclopropylspiranic derivatives are reported. One route involves the formation of cyclopropane rings from C4-acyloins; a second route uses the dimerisation of bicyclopropylidene. Spectroscopic data do not point to any particular electronic interactions between cyclopropane rings in these compounds.
