Organocatalytic asymmetric conjugate addition of 2-fluoro-1,3-diketones to nitroalkenes

Add time:07/11/2019    Source:sciencedirect.com

The organocatalytic enantioselective conjugate reaction of 2-fluoro-1,3-diketones to nitroalkenes promoted by chiral binaphthyl-modified squaramide has been achieved. Treatment of 2-fluoro-1,3-diketones with nitroalkenes under mild reaction conditions afforded the corresponding Michael products containing fluorinated quaternary carbon stereocenter with excellent enantioselectivity (up to 98% ee).

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