Copper-Catalyzed Intermolecular Thioamination of Maleimides with Thiols and Formamides: A One-Step Construction of 3-Amino-4-thiomaleimides Using Formamides as Nitrogen Sources

Autor: Zhen-Hua Yang, Jia-Nan Zhu, Ze-Hui Jin, Jian Zheng, Sheng-Yin Zhao
Rok vydání: 2018
Předmět:
Zdroj: Synthesis. 50:4627-4636
ISSN: 1437-210X
0039-7881
DOI: 10.1055/s-0037-1610536
Popis: A highly efficient copper-catalyzed intermolecular C(sp2)–H thioamination of maleimides with thiols and formamides in the presence of fluoroboric acid is reported using various readily available formamides as nitrogen sources and solvents. A diverse range of 3-amino-4-thiomaleimides is obtained with good yields under mild conditions, involving C–N and C–S bond formation. This methodology enriches current C–N and C–S bond formation chemistry and features operational simplicity and excellent functional-group tolerance.
Databáze: OpenAIRE