Synthesis 2015; 47(03): 359-366
DOI: 10.1055/s-0034-1378919
paper
© Georg Thieme Verlag Stuttgart · New York

Aryltriolborates as Air- and Water-Stable Bases for Wittig Olefination

Wenhua Huang*
Department of Chemistry, Tianjin University, Tianjin 300072, P. R. of China   Fax: +86(22)27403475   Email: huangwh@tju.edu.cn
,
Shuang-Hong Zhao
Department of Chemistry, Tianjin University, Tianjin 300072, P. R. of China   Fax: +86(22)27403475   Email: huangwh@tju.edu.cn
,
Ning Xu
Department of Chemistry, Tianjin University, Tianjin 300072, P. R. of China   Fax: +86(22)27403475   Email: huangwh@tju.edu.cn
› Author Affiliations
Further Information

Publication History

Received: 02 July 2014

Accepted after revision: 10 October 2014

Publication Date:
12 November 2014 (online)


Abstract

Tetrabutylammonium aryltriolborates have been synthesized in 37–66% yield by a one-pot procedure from arylboronic acids, 1,1,1-tris(hydroxymethyl)ethane, and aqueous tetrabutylammonium hydroxide. The aryltriolborates can be used as bases in Wittig reactions of aromatic aldehydes with all three types of phosphorus ylides: stabilized and semistabilized ylides can be generated at room temperature, and nonstabilized ylides at 120 °C (bath temperature).

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