Flash vacuum pyrolysis of stabilised phosphorus ylides. Part 1. Preparation of aliphatic and terminal alkynes
β Scribed by Aitken, R. Alan; Atherton, J. Ian
- Book ID
- 120939435
- Publisher
- Royal Society of Chemistry
- Year
- 1994
- Weight
- 628 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1472-7781
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π SIMILAR VOLUMES
## Abstract Six examples of the Ξ²,Ξ²β²,Ξ³,Ξ³β²βtetraoxo phosphorus ylides 6 have been prepared. While they are found, upon flashβvacuum pyrolysis (FVP) at 500Β°C to decompose to give no useful products, conventional pyrolysis by distillation at 200Β°C gives the trioxo alkynes 12 and 13 where R^1^ and R^2^
Reaction of a range of bis(ylides) with acid chlorides has been used to prepare the bis(oxoylides) 11-15. Similarly a range of simple ylides react with bis(acid chlorides) to give bis(oxoylides) 19-27 with the isomeric structure. Flash vacuum pyrolysis (FVP) of one example of the first type results