Doroszuk J, Musiejuk M, Jędrzejewski B, Walczak J, Witt D. Convenient and Efficient Synthesis of Functionalized 2-Sulfenylindoles.
MATERIALS (BASEL, SWITZERLAND) 2020;
13:E4492. [PMID:
33050451 PMCID:
PMC7601631 DOI:
10.3390/ma13204492]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 09/29/2020] [Accepted: 10/01/2020] [Indexed: 01/20/2023]
Abstract
A simple, efficient, and practical sulfenylation at the C2 position of N-tosylindoles under mild conditions was developed. The designed transformation is based on the reaction of N-tosylindoles with BuLi and S-alkyl, and S-aryl phosphorodithioates or thiotosylates to produce 2-sulfenylindoles in moderate to high yields. The presence of additional hydroxy, carboxy, or amino functionalities did not disturb the formation of products.
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