An atom or a group with a deficiency of electrons, making it susceptible to attack by a nucleophile.
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1-methyl-2,1-benzisothiazole<2,3-b>-5-phenyl-1,2-dithiole
Diphenylmethyl-dichlormethyl-sulfon
4-[1-Dimethylamino-meth-(Z)-ylidene]-3-methyl-5,5,8-trioxo-7-(2-phenoxy-acetylamino)-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid allyl ester
1-Propanone, 2-hydroxy-1-(4-methoxyphenyl)-
1-(butoxycarbonyl)-4-phenyl-1,2,4-triazolidine-3,5-dione
