DYASIN of racemic dynamic chiral heterohelicenes afforded their highly enantioenriched forms in quantitative yields. These heterohelicenes were readily converted into semi-static axial-chiral 1,1′-binaphthyl derivatives in a stereospecific manner.
Cyano-aci-nitroacetate serves as a safely handleable precursor of nitroacetonitrile that undergoes 1,3-dipolar cycloaddition to form 3-cyanoisoxazol(in)es.
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