Ring expansion of silacyclopentadienylcarbene to silabenzene
โ Scribed by Wataru Ando; Hirohide Tanikawa; Akira Sekiguchi
- Book ID
- 104221633
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- French
- Weight
- 213 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
โฆ Synopsis
Silacyclopentadienylmethylene generated from thermolysis and photolysis of l-methyl-2,3,4,5-tetraphenylsilacyclopentadienyldiazomethane and -diazirine rearranges to silabenzene by ring expansion and to 5-silafulvene by 1,2-migration of a methyl group.
๐ SIMILAR VOLUMES
By treatment with BF3/ethyleneglycol, cyclopentanones with the carbonyl function at the C3-position of a-side chain undergo the ring cleavage to build up the seven membered rings, and this novel ring expansion was applied to the synthesis of bulnesol. Recently, we have reported the new type fragment