Substituted cyclooctatetraenes can be prepared in two steps employing a Cr-(0)-promoted [6n+2n] thiepin dioxide-alkyne cycloaddition followed by photoactivated sulfur dioxide extrusion.
โฆ LIBER โฆ
A convenient synthesis of 1,2-dimethyltetramethoxydisilane
โ Scribed by Michael E. Childs; William P. Weber
- Book ID
- 108351569
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 269 KB
- Volume
- 86
- Category
- Article
- ISSN
- 0022-328X
No coin nor oath required. For personal study only.
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## Abstract The synthesis of 2,2โdimethylโ and 2,2โdiphenylcyclopentanone in high yield is reported by the ring expansion of the corresponding 1โ(disubstituted carbinol)โ1โhydroxycyclobutane in polyphosphoric acid. Modifications of the general synthetic route using reported reactions offers a gener