Spiropolycyclic mono- and bis-epoxides 1-6 have been synthesized. The
structures of 1-6 have been established unequivocally via application
of single crystal X-ray crystallographic methods. The crystal densitie
s of 1-6 (from X-ray crystallographic data) are compared with the resu
lts of density predictions. (C) 1998 Elsevier Science Ltd. All rights
reserved.