Synthesis of spirooxindoles bearing 2,3-(or 2,5-)dihydrothiophene-2-thione moiety via [3+2] annulation of carbon disulfide with Morita-Baylis-Hillman carbonates of isatins
Keywords: [3 + 2] لغو; [3+2] Annulation; Carbon disulfide; Dihydrothiophene-2-thione; Morita-Baylis-Hillman carbonates; Spirooxindoles;