作者:Alexander Star、Israel Goldberg、Benzion Fuchs
DOI:10.1002/1099-0690(200102)2001:4<729::aid-ejoc729>3.0.co;2-2
日期:2001.2
We present new approaches to podands based on the recently introduced 1,5-dioxa-3,7-diazadecalin (DODAD) core, with functionalized termini in the 2,6- and/or 3,7-positions. Two such podands (12, 14) were prepared and their structures and conformations were studied by NMR. Compound 14 was also analyzed by X-ray and computational (CFF98) techniques. Both podands underwent complexation with cadmium ions, with active participation of the dioxadiazadecalin core cavity. The Cd2+ complexes were studied by NMR and MS techniques. Allosteric effects were observed in the complexation of 12, whereas 14 was preorganized for complexation.