Thermal [2 + 2]-Cycloadditions of Tetracyanoethylene to Cyclic Thioenol Ethers
โ Scribed by Dr. Siegfried Fries; Prof. Dr. Klaus Gollnick
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 241 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Reaction of (Z)-[6]paracycloph-3-ene (2) with tetracyanoethylene (TCNE) gave a [2 + 21 cycloadduct (4, which represents the first example of thermal [ 2 + 2 ] cycloaddition of a benzene derivative under mild conditions. The structure of 4 was confirmed by x-ray crystallographic analysis. Semi-empiri
## Carbon dioxide and carbon disulfide give crystalline cycloadducts with the phosphazene bond of a 1,2k 5 -azaphosphole. The CO 2 -adduct fully dissociates in solution, the CS 2 -adduct on short heating only to a small part. On longer heating, the latter rearranges in two successive 1,3-shifts to