Synthesis of Cyclo-substituted Triangulanes with Four and Five Spiroannulated Three-membered Rings by Sequential Peripheral Cyclopropanation of Cyclooctene
Аннотация:
Synthesis of pentacyclo[9.1.0.01 3.03.5.05.7]dodecane 4 and hexacyclo[10.1.0.01 3.03.5.05.7.07.9]tridecane 5 has been performed, based on sequential bromocyclopropanation of the C=C bond and elimination to give a repeating endomethylenecyclopropane framework, with termination of the sequence by cyclopropanation.