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ChemInform Abstract: Organocatalyzed Enantioselective Michael Addition of 2-Hydroxy-1, 4-Naphthoquinone to β,γ-Unsaturated α-Ketophosphonates.

✍ Scribed by Tao Liu; Youming Wang; Guiping Wu; Haibin Song; Zhenghong Zhou; Chuchi Tang

Publisher
John Wiley and Sons
Year
2011
Weight
34 KB
Volume
42
Category
Article
ISSN
0931-7597

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✦ Synopsis

Abstract

The thiourea (QUI) efficiently promotes the title process.

📜 SIMILAR VOLUMES

Highly Enantioselective Organocatalytic
Highly Enantioselective Organocatalytic Michael Addition of 2-Hydroxy- 1,4-naphthoquinone to β,γ-Unsaturated α-Oxo Esters
✍ Yi-Feng Wang; Wei Zhang; Shu-Ping Luo; Guang-Cun Zhang; Ai-Bao Xia; Xiang-Sheng 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 188 KB 👁 1 views

## Abstract An organocatalytic enantioselective Michael addition of 2‐hydroxy‐1,4‐naphthoquinone to β,γ‐unsaturated α‐oxo esters has been developed. The process was promoted by bifunctional chiral amine derived squaramides according to a hydrogen‐bonding mediated activation mechanism and afforded t