Formation of a Meisenheimer salt from a substituted picramide and potassium methoxide in methanol; the isolation of a neutral Meisenheimer complex
Abstract
The substituted picramide (III) gives the 1-σ(Meisenheimer) complex (IV) on treatment with KOMe in methanol; when an equivalent of HCl is added to (IV) the relatively stable neutral complex (V) is produced, which decomposes to (III) and methanol in polar solvents.