Synthesis 2005(17): 2857-2860  
DOI: 10.1055/s-2005-872169
PAPER
© Georg Thieme Verlag Stuttgart · New York

A Novel and Highly Efficient Asymmetric Synthesis of Epoxides via Chiral Telluronium Ylides

Wen-Hua Ou, Zhi-Zhen Huang*
School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
Fax: +86(25)83686240; e-Mail: huangzhizhen0226@163.com;
Further Information

Publication History

Received 26 April 2005
Publication Date:
12 August 2005 (online)

Abstract

The one-pot reaction of telluronium salt 8, aldehyde, and potassium tert-butoxide proceeded smoothly via chiral benzyl telluronium ylide, producing trans-(2S,3S)-diaryl epoxides with good yields as well as excellent diastereoselectivities and enantioselectivities (up to 99% ee).