α-Sulfonyl Succinimides: Versatile Sulfinate Donors in Fe-Catalyzed, Salt-Free, Neutral Allylic Substitution
作者:Markus Jegelka、Bernd Plietker
DOI:10.1002/chem.201101047
日期:2011.9.5
easy. The use of sulfinate salts as nucleophiles in substitutions is frequently accompanied by side reactions such as π‐bond migration, β‐elimination, and so on. Herein we present a preparatively simple way to synthesize a variety of different aryl or alkyl allyl sulfones starting from readily accessible allylic carbonates. By employing aryl or alkyl α‐sulfonyl succinimides as sulfinate synthons, mild
烯丙基砜是有机化学中的通用中间体。两个不同官能团的存在为大量后续转化奠定了基础。然而,尽管具有这些优点,但是制备富于区域异构体的砜并不容易。在替代物中使用亚磺酸盐作为亲核试剂通常会伴随有诸如π键迁移,β消除等副反应。本文中,我们提出了一种制备简单的方法,从易于获得的烯丙基碳酸酯开始合成各种不同的芳基或烷基烯丙基砜。通过使用芳基或烷基α-磺酰基琥珀酰亚胺作为亚磺酸盐合成子,实现了多种烯丙基碳酸酯的轻度和区域选择性ipso取代。