syn-4,13;6,11-Dimethano[15]annulenone, a 14π-Analog of Tropone—Synthesis and X-Ray Structure Analysis

Synthesis and X-Ray Structural Studies o

Synthesis and X-Ray Structural Studies of ‘4,7,13-Trioxa-1,10-diaza-5,6-benzocyclopentadecane-2,9-dione’ ( = 5,6,9,10-Tetrahydro-2H, 8H-benzo[b][1,4,10]trioxa[7,13]diazacyclopentadecene-311(4H,12H)-dione) and ‘4,7,13,16-Tetraoxa-1,10-diaza-5,6-benzocyclooctadecane-2,9-dione’ ( = 5,6,8,9,12,13-Hexahydro-2H,11H-benzo[b][1,4,10,13]tetraoxa- [7,16]diazacyclooctadecene-3,14(4H, 15H)-dione)

✍ Przemyslaw Gluziński; Janusz Jurczak; Janusz W. Krajewski; Piotr Sałański; Tomas 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 German ⚖ 306 KB 👁 1 views

## Abstract The molecular structures of the title compounds 3 and 5 were investigated by NMR and X‐ray structural methods. The NMR results suggest two equivalent halves for both molecules. The X‐ray study shows an approximate mirror plane for 3 and an approximate twofold axis for a significant port