1-(Chloromethyl)-4-fluoro-1,4-diazoniabicyclo-[2,2,2]octane bis(tetrafluoroborate) as novel and efficient reagent for the conjugate addition of indoles to α,β-unsaturated ketones

Yadav, J. S. ; Subba Reddy, B. V. ; Raju, A. ; Ravindar, K. ; Baishya, Gakul (2007) 1-(Chloromethyl)-4-fluoro-1,4-diazoniabicyclo-[2,2,2]octane bis(tetrafluoroborate) as novel and efficient reagent for the conjugate addition of indoles to α,β-unsaturated ketones Chemistry Letters, 36 (8). pp. 1056-1057. ISSN 0366-7022

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Official URL: http://www.jstage.jst.go.jp/article/cl/36/8/36_105...

Related URL: http://dx.doi.org/10.1246/cl.2007.1056

Abstract

Indoles undergo smooth conjugate addition with α,β-unsaturated ketones in the presence of 10 mol % Selectfluor under extremely mild conditions to afford the corresponding Michael adducts in high to quantitative yields with 1,4-selectivity.

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