Rearrangement products of 3-methane­sulfonyl-N-methyl-N-nitro­aniline

Two isomeric products (C₈H₁₀N₂O₄S) of the rearrangement of 3-methane­sulfonyl-N-methyl-N-nitro­aniline have been investigated, viz. 3-methane­sulfonyl-N-methyl-2-nitro­aniline, which was the main product of the rearrangement, and 5-methane­sulfonyl-N-methyl-2-nitro­aniline. In both mol­ecules, the aromatic rings are appreciably deformed towards ortho-quinonoidal geometry by electronic and steric interactions. The crystal structure is stabilized, in both cases, by weak C—H⋯O hydrogen bonds.