Synthesis 2012; 44(20): 3129-3144
DOI: 10.1055/s-0032-1316772
feature article
© Georg Thieme Verlag Stuttgart · New York

A Facile Method for the Synthesis of 3-Substituted 3-(Alkylthio)oxindoles or 3-Alkoxyoxindoles

Feng Zhu
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. of China   Fax: +86(21)62234560   eMail: chwang@chem.ecnu.edu.cn   eMail: jzhou@chem.ecnu.edu.cn
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Feng Zhou
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. of China   Fax: +86(21)62234560   eMail: chwang@chem.ecnu.edu.cn   eMail: jzhou@chem.ecnu.edu.cn
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Zhong-Yan Cao
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. of China   Fax: +86(21)62234560   eMail: chwang@chem.ecnu.edu.cn   eMail: jzhou@chem.ecnu.edu.cn
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Chao Wang
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. of China   Fax: +86(21)62234560   eMail: chwang@chem.ecnu.edu.cn   eMail: jzhou@chem.ecnu.edu.cn
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Yong-Xue Zhang
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. of China   Fax: +86(21)62234560   eMail: chwang@chem.ecnu.edu.cn   eMail: jzhou@chem.ecnu.edu.cn
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Cui-Hong Wang*
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. of China   Fax: +86(21)62234560   eMail: chwang@chem.ecnu.edu.cn   eMail: jzhou@chem.ecnu.edu.cn
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Jian Zhou*
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. of China   Fax: +86(21)62234560   eMail: chwang@chem.ecnu.edu.cn   eMail: jzhou@chem.ecnu.edu.cn
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Publikationsverlauf

Received: 15. Juli 2012

Accepted after revision: 16. August 2012

Publikationsdatum:
31. August 2012 (online)


Abstract

We report a highly efficient perchloric acid catalyzed substitution reaction of 3-hydroxyoxindoles with thiols and alcohols for the synthesis of 3-substituted 3-(alkylthio)oxindoles or 3-alkoxyoxindoles, with catalyst loading down to 0.5 mol%. The scope and limitation of this method has been studied. An unprecedented mercury(II) perchlorate trihydrate catalyzed tandem Sakurai­–Hosomi/(thio)ether formation reaction, starting from isatins, allyltrimethylsilane, and thiols or alcohols, has also been developed, which enables the facile synthesis of versatile 3-(alkylthio)- or 3-alkoxy-3-allyloxindoles.

Supporting Information