1. Di-isophorone and related compounds. Part 9 1-(substituted)aminodi-isophoranes and their cyclodehydration products
2. B. Furth, J. Kossanyi, J. P. Morizur and M. Vandewalle, Bull. Soc. Chim. France, 1428 (1967).
3. Diisophorone and related compounds. 20. Diisophoranes incorporating the 1,3-thiazine ring system: 8,11a-methanocycloocta[d,e][3,1]benzothiazines
4. 8,11 a-methanocycloocta[d,e]quinazolines: Diisophoranes incorporating the pyrimidine ring system
5. Note on Nomenclature. Since the systematic names of diisophorone and its derivatives are excessively cumbersome, we continue to use, in the Experimental, our simplified nomenclature [7,8] based on the trivial name “diisophorane” for the parent hydrocarbon B, and suitably modified for derived tetracyclic structures [2,4]. The “1,20-dehydro” component in the present names reflects the relation of the compounds to their presumed precursors 4 by cyclodehydration. The numbering adopted for diisophorones is retained, see F, being expedient for direct comparisons, especially of the C-13 nmr spectra. Systematic names, indispensable for data retrieval, based on both the Baeyer and IUPAC conventions are given for four selected representative structures in the Experimental.