A Convergent Radical Based Route to Trifluoromethyl Ketones and to α,β-Unsaturated Trifluoromethyl Ketones
作者:Lucile Anthore、Samir Z. Zard
DOI:10.1021/acs.orglett.5b01344
日期:2015.6.19
A convergent synthesis of trifluoromethyl ketones and α,β-unsaturated trifluoromethyl ketones is described, starting with aliphatic iodides and dithiocarbonates (xanthates) and exploiting both the α- and β-fragmentations of a sulfonyl radical. The transformation initially furnishes the ketones in a masked enol carbonate form, from which they can be easily regenerated.
描述了三氟甲基酮和α,β-不饱和三氟甲基酮的收敛合成,其开始于脂族碘化物和二硫代碳酸酯(黄原酸酯),并利用了磺酰基的α-和β-片段化。该转变最初提供掩蔽的烯醇碳酸酯形式的酮,从中可以容易地将它们再生。