N-(1-Methyl-2-pyrrolidinylidene)-p-toluenesulfonamide: a Condensation Product of 4-Methylphenylsulfonyl Isocyanate and 1-Methyl-2-pyrrolidone

The preparation of the crystalline title compound, C₁₂H₁₆N₂O₂S, which is shown to have E geometry about the imine double bond, also yields an oily Z isomer.

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