- 作者: 許銘清 ; 卓靜哲
- 作者服務機構: Institute of Chimie des Substances Naturelles, F-91198 Gif-Sur-Yvette, France
- 中文摘要: Xanthates are convenient precursors of a variety of radicals that can be captured in an inter-or intramolecular fashion. Overall, the process involves rupture of the sulfide C-S bond and addition of the elements of the xanthate to the olefinic trap. The xanthate in the product can be used in another radical sequence or ionically modified in a great variety of ways. S-Propargyl xanthates exhibit a special but interesting behaviour which involves a sigmatropic rearrangement to the corresponding allene and ring closure to a novel betaine.
- 英文摘要: --
- 中文關鍵字: Xanthates; Radical; Radical Addition; Deoxy Sugars
- 英文關鍵字: 黃原酸鹽;自由基;自由基加成;去氧糖