Trichloroisocyanuric Acid/NaNO<sub>2</sub>/wet SiO<sub>2</sub>as an Efficient System for the Selective Dinitration of Phenols under Solvent-free Conditions
作者:Mohammad Ali Zolfigol、Elaheh Madrakian、Ezat Ghaemi
DOI:10.1055/s-2003-42063
日期:——
Dinitrophenols can be obtained via direct nitration of phenols with trichloroisocyanuric acid, NaNO2 and wet SiO2 at room temperature under solvent-free conditions with moderate to high yields.
Stereoelectronic and conformational effects in Meisenheimer complexes. Intrinsic reactivities of spiro vs. 1,1-dimethoxy and 1-methoxy-1-phenoxy complexes