Iron(III) p-toluenesulfonate (tosylate) is an efficient catalyst for acetylation of alcohols, phenols, and aldehydes. The acetylation of 1° and 2° alcohols, diols, and phenols proceeded smoothly with 2.0 mol % of catalyst. However, the reaction worked well with only a few 3° alcohols. The methodology was also applicable to the synthesis of a few benzoate esters but required the use of 5.0 mol % catalyst. Aldehydes could also be converted into the corresponding 1,1-diesters (acylals) under the reaction conditions. Iron(III) tosylate is an inexpensive, and easy to handle, commercially available catalyst.

中文翻译：

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甲苯磺酸铁（III）催化醇，酚和醛的酰化

对甲苯磺酸铁（III）（甲苯磺酸盐）是用于醇，酚和醛乙酰化的有效催化剂。用2.0mol％的催化剂使1°和2°的醇，二醇和酚的乙酰化顺利进行。然而，该反应仅用少量的3°醇进行即可。该方法也适用于少量苯甲酸酯的合成，但需要使用5.0 mol％的催化剂。在反应条件下，醛也可以转化为相应的1，1-二酯（酰基）。甲苯磺酸铁（III）是一种便宜且易于处理的市售催化剂。