Synthesis 2024; 56(19): 2973-2984
DOI: 10.1055/a-2338-9005
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Tandem [5,5]-/[3,3]-Rearrangements of Aryl Sulfoxides with Allyl Nitriles

Mengjie Hu
,
Liying Ru
,
Mengjiao Zhu
,
Shengwen Yang
,
Suojiang Fan
,
Jiangtao Ji
,
Dingming Zheng
,
Bo Peng
This work was supported by funding from the National Natural Science Foundation of China (22371261, 22071219). We also appreciate the support of Zhejiang Normal University.


Abstract

Tandem aromatic rearrangements represent a potent strategy for modulating the regioselectivity of a rearrangement process. In this article, we disclose two novel tandem aromatic rearrangements triggered by sulfonium [5,5]-rearrangement recently developed in our laboratory. Specifically, the [5,5]-rearrangement of aryl sulfoxides with allyl nitriles, followed by [3,3]-Cope rearrangement, forges a seamless tandem [5,5]-/[3,3]-rearrangement cascade, affording ortho-functionalized aryl sulfides. The other tandem process involves [5,5]-rearrangement of aryl sulfoxides with allyl nitriles, followed by nucleophilic addition/DDQ-oxidation-induced [3,3]-Cope rearrangement, eventually yielding meta-functionalized aryl sulfides. Both consecutive rearrangements enrich the repertoire of tandem aromatic rearrangement methodologies.

Supporting Information



Publication History

Received: 07 May 2024

Accepted after revision: 05 June 2024

Accepted Manuscript online:
05 June 2024

Article published online:
24 June 2024

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