Strong influence of the trifluoromethyl group on the chemoselectivity of [3+2]-cycloadditions of thiocarbonyl S-methanides with α,β-unsaturated ketones
Keywords: تیو کربونیل ادهز; Fluorinated enones; Thiocarbonyl ylides; [3+2]-Cycloaddition; Sulfur heterocycles; Chemoselectivity; Regioselectivity;