Synthesis 2021; 53(20): 3744-3750
DOI: 10.1055/a-1493-6885
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N-Selenocyanato-Dibenzenesulfonimide: A New Electrophilic Selenocyanation Reagent

Deng Zhu
,
Ai-Hui Ye
,
Zhi-Min Chen
We thank the NSFC (Nos. 21871178, 22071149, 21702135), and the STCSM (19JC1430100) for the financial support. This research was also supported by The Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning.


Abstract

A new electrophilic selenocyanation reagent N-seleno­cyanato-dibenzenesulfonimide was readily prepared in two steps from commercially available dibenzenesulfonimide for the first time. A variety of electrophilic selenocyanato reactions of nucleophiles have been achieved using it as selenocyanato source under mild and simple conditions. Numerous SeCN-containing compounds were obtained in moderate to excellent yields. Meanwhile, a Lewis acid mediated tandem selenocyanation/cyclization reaction of alkenes with phenols, which provided simple methods for the formation of various SeCN-containing chromanes and dihydrobenzofurans in moderate to good yields, has also been developed.

Supporting Information



Publication History

Received: 31 March 2021

Accepted after revision: 28 April 2021

Accepted Manuscript online:
28 April 2021

Article published online:
18 May 2021

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