Non-benzenoid aromatic systems

X-ray crystallographic studies are available on the ethoxy compound 1858 and on N,N-dimethylcyclopent[c]azepin-3-amine(19).59 The former is a fully conjugated, planar, 14k, non-benzenoid aromatic system, while the latter is virtually planar and, on the basis of bond length measurements, is best represented as the dipolar mesomer 19B. 

The stabilization of one non-benzenoid aromatic system by another proves to be remarkably collective with the ferrocenyl substituent. Triferrocenylcyclopropenium perchlorate has now been obtained, and it exhibits a pK + value whose magnitude (> 10) is comparable to that of the triamino-system. 

Research interests include natural products chemistry non-benzenoid aromatic systems organic reagents and reactions photochemistry new technology and product development. 

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