Cis - and trans-dioxa-tris-[2.1.1]-σ-homobenzenes
✍ Scribed by Horst Prinzbach; Manfred Maas; Hans Fritz; Gabrielle McMullen
- Book ID
- 104212739
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- French
- Weight
- 232 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
The three dioxa-trla-[2.1.1]4-homobeuzeuea ( 5)-( 7) have beau ayuthealsed. Preliminary thermolysla experimenta la the gas-phare (350-4OO'C) allow a qualitative descriptiou of their thermal isomeri~atiou proceseee.
We recently showed, that for the carbocyclic trie-[2.l.l]+y-homobenzeues (l)/(3) (X-CH2) the dls,dis,dl8 -aud dia,cou,cou-[G2*a2to2]-cycloreversiou, reap., to Z,Z,Z-( 2) and E,E,Z-cyclodecatrieuoue (4), reap., la clearly the kiuetically favoured, ther-
📜 SIMILAR VOLUMES
flected light of wavelength LR as a function of temperature and composition (Fig. la). According to de I/uies['], j . ~ and the pitch p and mean index of refraction ii are related by j.R=iip. The reciprocal reflection wavelength (I/&) is a direct 0.10 0.20