annulene(l), which was recently 1 synthesized , is a new type of condensed nonbenzenoid aro-
Synthesis and properties of a trisdehydro[18.10.2][14]annuleno[22]annulene
โ Scribed by Shin'ichi Nakatsuji; Shuzo Akiyama; Masazumi Nakagawa
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- French
- Weight
- 497 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
โฆ Synopsis
The interesting NMR spectral behavior of trisdehydro[4n+2]annuleno[4n1+2]annulenes (I,: n=n'=3 (1); Ib: n=n'=4 (2) and Ic: n=3, n'=4 (3)) inspired us to prepare a higher analogue of this series of annulenoannulenes, the trisdehydro-[18.10.2][14]annuleno[22]annulene (Id: n=3, n'=5) in order to get further inform mation on the induction of ring current in bicyclic system.
๐ SIMILAR VOLUMES
A bisdehydro[l4]annuleno[c]furan, an isoannelated diatropic annulene, has been synthesized. Cyclic glycol, a precursor of the annuleno[c]furan, could be converted into bisdehydro[l4]annulene derivatives under mild acidic conditions. We have already prepared a series of annelated [4n+2]annulenes fuse
previous papers, we reported the synthesis and diatropicity of 1,8-didehydro[14]annulenes annelated with naphthalene (1,2) or bensene (3). It seemed of considerable interest to prepare l, lO-didehydro[18]annulene fused with bensenoid system to compare the ring current in the 18n-electron system with