Total synthesis of Semibullvalene:
| Reference: | Paquette, L. A. J. Am. Chem. Soc. 1970, 92, 5765. DOI |
| Reactions: | Electrocyclic-6π • Cyclobutane • Bicyclo(420) • Diels-Alder, Azo • Photochemistry 2+2 • Cyclobutane • N-C(O)NR2 → N-H • Hydrazine → Azo • Azo fragmentation • Cyclopropane • |
| Reagents: | Hydroxide, potassium • O2 • AgBF4 • |