1,2,3-Tricarbonylverbindungen, VIII. Die Verwendung von Fluorenylidentriphenylphosphoranen in der Carbonyl-Olefinierung nachWittig. Versuche mit 1,2,3-Indantrion, 1,2,3-Trioxo-2,3-dihydrophenalen, Glyoxal und Terephthalaldehyd
✍ Scribed by Schönberg, Alexander ;Singer, Erich ;Schulze-Pannier, Heidemarie
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1973
- Tongue
- English
- Weight
- 492 KB
- Volume
- 106
- Category
- Article
- ISSN
- 0009-2940
No coin nor oath required. For personal study only.
✦ Synopsis
The Use of Fluorenylidenetriphenylphosphoranes in Witrig Olefin Synthesis. Experiments with 1 ,2,3-Indanetrione, 1,2,3-Trioxo-2,3-dihydrophenalene, Glyoxal, and Terephthalaldehyde
The fluorenylidenetriphenylphosphoranes 1 and 2 react with the cyclic 1,2,3-tricarbonyl compounds 5 and 6 to yield the corresponding ethylene5 9-12 and triphenylphosphine oxide. Treatment of 1 and 2 with glyoxal or terephthalaldehydc affords the dienes 20-23.25 was obtained by reaction of 9-phenanthrenecarbaldehyde with 1.
Statements found in t h e literature concerning the rcactrvity of 1 are discussed.