Syntheses of Nitro-Substituted 2,3,4,8-Tetraphenylpentacyclo(5.3.0.0(2,5).0(3,9).0(4,8))decanes

摘要

The syntheses of three new polynitro-1,3-bishomocubanes are described: 2,3,4,8-tetraphenyl-anti-6-anti-10-dinitro-pentacyclo (3), 2,3,4,8-tetraphenyl-6,6,-anti-10-tetranitro-pentacyclo decane (4) and 2,3,4,8-tetraphenyl-6,6,10,10-tetranitropentacyclo decane (5). Only poor quality crystals of 3 could be obtained via fractional recrystalliztion from methanol; nevertheless, a definitive strucutre could be obtained by single crystal X-ray structural analysis that unequivocally establishes the anti-6-anti-10 configuration for the carbon-nitrogen dioxide groups in 3. In addition, the single crystal X-ray structural analysis of 4 is reported.