的三甲基thiolation 的酒精
Ye Yang1, Jiemin Ma1, Jiaxiang Zhang1
1School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, China. caihu@ncu.edu.cn.
Organic & biomolecular chemistry
|October 26, 2023
概括
一种新的无金属方法使得使用三素 (PPh3) 和N-trifluoromethylthiophthalimide,可使酒精脱水. 这种快速的30分钟的协议提供了卓越的功能组耐受性和广泛适用于天然产品和药物.
科学领域:
- 有机合成 有机合成
- 药用化学 医学化学
- 催化剂是一种催化剂.
背景情况:
- 三甲基thiolation是修改生物活性分子的关键转换.
- 现有的方法通常需要恶劣的条件,昂贵的试剂或过渡金属催化剂.
- 开发高效的,无金属的协议来引入CF3S组是非常理想的.
研究的目的:
- 开发一种新的,无金属的协议,用于脱氧化三甲基化醇的脱氧化.
- 为了快速实现这种转变,并具有高功能组容忍度.
- 证明该方法在复杂分子合成中的实用性.
主要方法:
- 利用商业上可用的trifenylphosphine (PPh3) 作为减少剂和N-trifluoromethylthiophthalimide作为三甲基化剂.
- 在温和的,没有金属的条件下进行反应.
- 优化反应时间,在30分钟内完成.
主要成果:
- 成功实现了各种各样的酒精的无金属脱氧化三甲基化.
- 显示出出色的功能组耐受性,在基板中保留敏感的部分.
- 在转型过程中表现出高度的区域选择性.
- 通过对天然产品和药物分子的成功应用,验证了该协议的实用性.
结论:
- 已经建立了一种新的,高效的,无金属的醇脱基化甲基thiolation.
- 开发的协议是快速的,表现出广泛的基质范围,并容忍各种功能组.
- 初步的机理性见解表明,PPh3介导的脱氧化途径涉及三甲基thiophosphonium中间体.
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