Cycloaddition in synthesis of sulfonamide derivatives. II. Synthesis of N-arylsulfonylethoxalamides by cycloaddition of arylsulfonyl isocyanates to ethyl oxamates.
Cycloaddition in synthesis of sulfonamide derivatives. II. Synthesis of N-arylsulfonylethoxalamides by cycloaddition of arylsulfonyl isocyanates to ethyl oxamates.