Synthesis 2009(15): 2501-2504  
DOI: 10.1055/s-0029-1217393
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

Facile and Efficient Total Synthesis of Taspine

Bin Chenga, Sanqi Zhanga, Liyong Zhub, Jie Zhanga, Qiang Lia, Ailin Shana, Langchong He*a
a Research & Engineering Center for Natural Medicine, School of Medicine, Xi’an Jiaotong University, Xi’an 710061, P. R. of China
Fax: +86(29)82655451; e-Mail: helc@mail.xjtu.edu.cn;
b College of Chemistry & Materials Science, Shannxi Normal University, Xi’an 710062, P. R. of China
Further Information

Publication History

Received 27 February 2009
Publication Date:
08 June 2009 (online)

Abstract

The facile and efficient total synthesis of taspine was achieved in 10 steps in high yield (16.5% overall) from commercially available isovanillin. Key steps in the synthesis are preparation of a symmetrical homodimer employing a classical Ullmann coupling reaction, and introduction of an allyl substituent by the Claisen rearrangement reaction. Significantly, the facile synthetic scheme proposed in this work has the characteristics of mild reaction conditions, inexpensive reagents, higher yield, and simple operation.

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