Synthesis 2022; 54(24): 5479-5490
DOI: 10.1055/a-1898-9752
paper

Electrochemical Cascade Thia-Michael and Thioacetalization of Cyclic Enones

Lalit Yadav
,
Maneesha Maneesha
,
Kamlesh Kumar Dabaria
,
Pooja Kumari Jat
,
Asha Gurjar
,
The Science and Engineering Research (SERB)-DST, New Delhi (CRG/2020/003634).


Abstract

The first electricity-promoted, catalyst-free cascade thia-Michael addition and thioacetalization of cyclic enones with thiols are described. The electro-organic protocol was found to be suitable for both alkyl and aryl thiols, which reacted with a variety of cyclic enones to afford the corresponding tris-sulfane in good to excellent yields. Based on control experiments, it was found that this cascade reaction is chemoselective, involving first thia-Michael addition followed by thioacetalization process.

Supporting Information



Publication History

Received: 15 June 2022

Accepted after revision: 13 July 2022

Accepted Manuscript online:
13 July 2022

Article published online:
22 August 2022

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