A new reagent for the deprotection of aromatic methyl ethers, 2-(diethylamino)ethanethiol, is reported. This compound, commercially available as its HCl salt, affords the corresponding phenols in good to excellent yields on a wide variety of substrates. A clear advantage of this method over the use of more common thiols, such as ethanethiol, is the easy extraction of both the deprotecting reagent and the byproduct 2-(diethylamino)ethyl methyl sulfide into the aqueous phase by quenching with dilute acid, which allows an essentially odorless workup.

中文翻译：

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2-（二乙氨基）乙硫醇，一种无臭的芳香甲基醚脱保护新试剂

报道了一种用于芳族甲基醚的脱保护的新试剂2-（二乙基氨基）乙硫醇。这种化合物以其HCl盐的形式商购可得，可在多种底物上以高至极好的收率提供相应的酚。与使用更常见的硫醇（如乙硫醇）相比，此方法的明显优势在于，通过用稀酸淬灭，可以轻松地将脱保护剂和副产物2-（二乙氨基）乙基甲基硫化物萃取到水相中，从而实现基本上无味的处理。