Synthesis 2014; 46(17): 2353-2361
DOI: 10.1055/s-0034-1378231
paper
© Georg Thieme Verlag Stuttgart · New York

One-Pot Multistep Synthesis of Trisubstituted Alkenes from N-Tosylhydrazones and Alcohols

Qiang Sha
School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. of China   Fax: +86(25)84317078   eMail: ywei@mail.njust.edu.cn
,
Yunyang Wei*
School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. of China   Fax: +86(25)84317078   eMail: ywei@mail.njust.edu.cn
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Publikationsverlauf

Received: 17. März 2014

Accepted after revision: 06. Mai 2014

Publikationsdatum:
10. Juni 2014 (online)


Abstract

A one-pot procedure for the synthesis of trisubstituted alkenes from N-tosylhydrazones and alcohols is reported. This procedure combines the aerobic oxidation reaction and Wittig reaction in one pot, which avoids using of environmentally toxic oxidants and isolation of the intermediates. The simple procedure makes it very attractive for the synthesis of trisubstituted alkenes when alcohols are used as starting materials. A variety of trisubstituted alkenes as well as trifluoromethyl-substituted alkenes were obtained in moderate to good yields (up to 84%) with good E-selectivity (up to 99%).

Supporting Information