✦ LIBER ✦

Synthesis of new dimeric-PEG-supported cinchona ammonium salts as chiral phase transfer catalysts for the alkylation of Schiff bases with water as the solvent

✍ Scribed by Xin Wang; Liang Yin; Ting Yang; Yongmei Wang

Book ID: 108284168
Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 168 KB
Volume: 18
Category: Article
ISSN: 0957-4166
DOI: 10.1016/j.tetasy.2006.12.024

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Synthesis of New Dimeric-PEG-Supported C

Synthesis of New Dimeric-PEG-Supported Cinchona Ammonium Salts as Chiral Phase Transfer Catalysts for the Alkylation of Schiff Bases with Water as the Solvent.

✍ Xin Wang; Liang Yin; Ting Yang; Yongmei Wang 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 25 KB 👁 2 views

A novel N-acetophenone cinchona ammonium

A novel N-acetophenone cinchona ammonium salts as chiral phase transfer catalysts for the alkylation of Schiff base in water

✍ Xin Wang; Jian Lv; Lei Liu; Yongmei Wang; Yang Wu 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 301 KB

Novel N-acetophenone cinchona ammonium salts have been successfully synthesized and used as chiral phase transfer catalysts for the asymmetric alkylation of tert-butyl benzophenone Schiff base derivatives in aqueous media at room temperature with the highest ee and yield up to 96 and 98%, respective

New Dimeric Anthracenyl-Derived Cinchona

New Dimeric Anthracenyl-Derived Cinchona Quaternary Ammonium Salts as Phase-Transfer Catalysts for the Asymmetric Synthesis of α-Amino Acids.

✍ Rafael Chinchilla; Patricia Mazon; Carmen Najera 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB 👁 2 views

New trimeric Cinchona alkaloid-based qua

New trimeric Cinchona alkaloid-based quaternary ammonium salts as efficient chiral phase transfer catalysts for enantioselective synthesis of α-amino acids

✍ Ayyanar Siva; Eagambaram Murugan 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 313 KB