Treatment of the p-sulfinylphenol derivatives 1 and 5 with trifluoroacetic anhydride causes a Pummerer-type rearrangement on aromatic rings and concomitant desulfurization to give 1 : 1 mixtures of the corresponding p-quinones and p-dihydroquinones, which are subjected to mild oxidation to provide high yields of p-quinones 3 and 7.
对亚磺酰基
苯酚衍
生物 1 和 5 经
三氟乙酸酐处理后,会在芳香环上发生普默尔型重排反应,同时发生脱
硫反应,从而得到 1 : 1 的相应对醌和对二
氢醌混合物。