In a recent paper in Chemistry – A European Journal, Nielsen and coworkers reported a deep study on the mechanism of the [2+2] cycloaddition-retroelectrocyclization (CA-RE) inducing the formation of 1,1,4,4-tetracyanobutadienes (TCBD), whi...
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Lewis Base Catalyzed C‐S Bond Formation through Methyl C(sp3)‐H Thiocyanation
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A Lewis base catalyzed C-S bond formation through thiocyanation of methyl C(sp3)-H bond is reported. The reaction works with diverse array of indoles to furnish thiocyanated products in good yield. The developed method is also applied for the synthesis of phercaptoline (hypotensive agent) and umifenovir (antiviral drug).
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