Herstellung der reinen, bicyclischen Olefine Bicyclo[4.2.1]non‐2‐en, Bicyclo[4.2.1]non‐3‐en und Bicyclo[4.2.1]non‐7‐en

Synthesis of the pure, bicyclic olefines Bicyclo[4.2.1]non‐2‐ene, Bicyclo[4.2.1]non‐3‐ene and Bicyclo[4.2.1]non‐7‐ene The synthesis of the olefines bicyclo[4.2.1]non‐2‐ene ( 3 ), bicyclo[4.2.1]non‐3‐ene ( 4 ) and bicyclo[4.2.1]non‐7‐ene ( 5 ) of high ‘certified’ purity from one common precursor ( 7 ) is described.