Journal
TETRAHEDRON LETTERS
Volume 61, Issue 13, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2020.151675
Keywords
Methyl enol ethers; Thiazolines; C-N; C-S bond; Wilsoniamine B alkaloid
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Funding
- Department of Science and Technology, Science and Engineering Research Board [EMR/2017/003484]
- MHRD, India
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An efficient metal-free synthesis of thiazolines, dihydrothiazole and enureas or thioureas from methyl enol ether with urea or thiourea derivatives in the presence of TFA (trifluoroacetic acid) are reported here. This synthetic protocol involves the formation of two bonds, C-N as well as C-S, in one step for the synthesis of thiazoline derivatives, dihydrothiazoles and a direct C-N bond for the synthesis of enamides with good to excellent yields. Further, this method was employed for the synthesis of wilsoniamine B alkaloid. (C) 2020 Elsevier Ltd. All rights reserved.
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