A practical direct preparation of tert-butyl esters from 2-tert-butoxypyridine has been developed. This system features the use of boron trifluoride·diethyl etherate in toluene solvent to rapidly achieve the reaction at room temperature. Using this reaction protocol, a variety of tert-butyl esters were synthesized from several different carboxylic acids at high yields. This practical procedure provides a promising and effective approach to the protection of carboxylic acids with a tert-butyl group.

中文翻译：

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在温和的条件下，使用三氟化硼·二乙醚快速，实用地由2-叔丁氧基吡啶合成叔丁酯

已经开发了从2-叔丁氧基吡啶实际直接制备叔丁酯的方法。该系统的特点是在甲苯溶剂中使用三氟化硼·乙醚乙醚，可在室温下快速完成反应。使用该反应方案，由几种不同的羧酸以高收率合成了多种叔丁酯。该实用方法为保护具有叔丁基的羧酸提供了一种有前途和有效的方法。