Synthesis and flash vacuum pyrolysis of dimethyl anti-7-nitro-2,5-norbornadiene-2,3-dicarboxylate

Article abstract of DOI:10.1055/s-1991-26516

Reaction of dimethyl anti-7-(trimethylsilyl)-2,5-norbornadiene-2,3-dicarboxylate (dimethyl anti-7-(trimethylsilyl)bicyclo[2.2.1]hepta-2,5-diene- 2,3-dicarboxylate, 1) with nitronium tetrafluoroborate affords the title compound 2 (65%). Subsequent photolysis of 2 affords the corresponding substituted quadricyclane derivative 3 (75%). Flash vacuum pyrolysis of 2 at 600°C affords dimethyl phthalate (67%) as the only isolable product.