Abstract
Herein, we report one-pot synthetic route to prepare unsymmetrical sulfonimine-based urea from aromatic/aliphatic carboxylic acids and sulfoximine using DPPA via Curtius rearrangement and demonstrate their synthetic utility by preparing various sulfoximine analogue of key biologically active compounds, such as tolbutamide, chlorpropamide, and oncolytic sulfonyl urea.
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