λ3σ3P and λ5σ5P derivatives of (E)-1,2-difluoro-2-(pentafluoro-λ6-sulfanyl)ethylene and (Z)-1,2,3,3,3-pentafluoropropylene
✍ Scribed by Holger Wessolowski; Andreas Gentzsch; Gerd-Volker Röschenthaler; Gary L. Gard
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 151 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1042-7163
No coin nor oath required. For personal study only.
✦ Synopsis
For the first time, the (E)-1,2-difluoro-2-(pentafluorok 6 -sulfanyl)ethenyl group has been bonded to k 3 r 3 phosphorus using a Grignard reagent. Similar phosphorus derivatives containing the (Z)-1,2,3,3,3-pentafluoropropenyl moiety were also synthesized for comparison. In three cases, hexafluoroacetone was added to form 4
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Diazo-2-oxoalkyl)silanes 1 react with 2-acyl-1,2,3(λ 3 )-[3+2] cycloreversion into 2 and 4, and extrusion of molecular nitrogen. The latter process is likely to generate 3-diazaphospholes 4 to form [3+2] cycloaddition products 5, which indicate that 1-diazo-2-silyloxy-1-alkenes 2, alkenylidene-1,2,3
## Dedicated to Professor G. Wittig in grateful appreciation on his 75th birthday Oxygenation of heterocycles by singlet oxygen produced by photosensitization"] has recently excited great interest''].