Addition of carbamoylsilane to isatins: Highly efficient synthesis of 3-hydroxy-3-aminocarbonyl-2-oxindoles derivatives

Abstract The first addition reaction between isatins and carbamoysilane has been developed which provides 3-hydroxy-3-aminocarbonyl-2-oxindoles core structures with excellent yields. Moreover, the reaction could undergo a one-pot synthesis process to furnish 3-hydroxy-3-aminocarbonyl-2-oxindole with gram-scale.