Metal-free hydrosulfonylation of α,β-unsaturated ketones: synthesis and application of γ-keto sulfones
作者:Xiufang Cheng、Shuo Wang、Yibo Wei、Huamin Wang、Ying-Wu Lin
DOI:10.1039/d2ra06784f
日期:——
γ-Keto sulfones are versatile building blocks and valuable intermediates in organic synthesis and pharmaceutical chemistry. Motivated by their excellent properties, we herein report a green, convenient, metal-free hydrosulfonylation method for a variety of ynones, vinyl ketones, and sodium sulfinates in the absence of stoichiometric oxidants. This operationally simple protocol provides straightforward
γ-酮基砜是有机合成和药物化学中的通用结构单元和有价值的中间体。受其优异性能的启发,我们在此报告了一种绿色、方便、无金属的氢磺酰化方法,用于在不存在化学计量氧化剂的情况下对各种炔酮、乙烯基酮和亚磺酸钠进行氢磺酰化。这种操作简单的协议提供了从易于获得的起始材料中直接和实用地获取具有广泛官能团耐受性的各种 γ-酮基砜的途径。此外,β,γ-不饱和酮基砜可以进一步与 2,3-丁二烯酸酯反应,在膦介导的 [3 + 2] 环加成反应中生成环戊烯。