Ts. Kuznetsova et al., SYNTHESIS OF CYCLO-SUBSTITUTED TRIANGULANES WITH 4 AND 5 SPIROANNULATED 3-MEMBERED RINGS BY SEQUENTIAL PERIPHERAL CYCLOPROPANATION OF CYCLOOCTENE, Mendeleev communications, (5), 1994, pp. 172-172
Synthesis of pentacyclo[9.1.0.0(1.3).0(3.5).0(5.7)]dodecane 4 and cycl
o[10.1.0.0(1.3).0(3.5).0(5.7).0(7.9)]tridecane 5 has been performed, b
ased on sequential bromocyclopropanation of the C=C bond and eliminati
on to give a repeating endomethylenecyclopropane framework, with termi
nation of the sequence by cyclopropanation.