Tropos Deoxycholic Acid-Derived Biphenylphosphites: Synthesis, Stereochemical Characterization and Use as Chiral Ligands in the Copper-Catalyzed Conjugate Addition of Diethylzinc to Acyclic Enones.

Copper-Catalyzed Enantioselective Conjug

Copper-Catalyzed Enantioselective Conjugate Addition of Diethylzinc to Acyclic Enones in the Presence of Planar-Chiral Phosphaferrocene-Oxazoline Ligands.

✍ Ryo Shintani; Gregory C. Fu 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 170 KB 👁 2 views

ChemInform Abstract: Design and Synthesi

ChemInform Abstract: Design and Synthesis of New Chiral Pyridine—Phosphite Ligands for the Copper-Catalyzed Enantioselective Conjugate Addition of Diethylzinc to Acyclic Enones.

✍ Yinjun Xie; Hanmin Huang; Weimin Mo; Xiangqun Fan; Zhiqiang Shen; Zhenlu Shen; N 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 38 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

P-Chiral o-Phosphinophenol as a P/O Hybr

P-Chiral o-Phosphinophenol as a P/O Hybrid Ligand: Preparation and Use in Cu-Catalyzed Asymmetric Conjugate Addition of Diethylzinc to Acyclic Enones.

✍ Yukitoshi Takahashi; Yoshikazu Yamamoto; Kosuke Katagiri; Hiroshi Danjo; Kentaro 📂 Article 📅 2006 🏛 John Wiley and Sons ⚖ 30 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Synthesis of New Chiral Aryl Diphosphite

Synthesis of New Chiral Aryl Diphosphite Ligands Derived from Pyranoside Backbone of Monosacharides and Their Application in Copper-Catalyzed Asymmetric Conjugate Addition of Diethylzinc to Cyclic Enones

✍ Lailai Wang; Yue-Ming Li; Chiu-wing Yip; Liqin Qiu; Zhongyuan Zhou; Albert S. C. 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 146 KB 👁 2 views

## Abstract New chiral aryl diphosphite ligands based on the pyranoside backbones of glucose and galactose were prepared. These ligands were tested in the Cu‐catalyzed asymmetric conjugate addition of diethylzinc to cyclic enones with up to 88% ee. The stereoselectivity was found to be dependent on