Goverdhan Mehta, M. Balaji Viswanath, Munirathinam Nethaji and Kailasam Venkatesan
J. Chem. Soc., Chem. Commun., 1992, 82-84
DOI:
10.1039/C39920000082,
Paper
Norbornadiene and 1,2-bismethoxycarbonylcyclobutadiene furnish a novel heptacyclic system 3(whose X-ray crystal structure has been determined)and an annulated pterodactylane derivative 4 in a single step.
