Synthesis of Rigid Polycyclic
Secondary Diamines: Bis-(2,3:6,7-Iminodimethylene)anthracene
and Bis-(2,3:6,7-Iminodimethylene)-9,10-dicarboxyethenoanthracene
Sumita Bhattacharyya, Jörgen Toftered, Ulf J. Nilsson* Organic and Bioorganic Chemistry, Lund University, POB 124, SE-221 00 Lund,
Sweden Fax: +46(46)2228209; e-Mail: ulf.nilsson@bioorganic.lth.se;