Abstract A facile and suitable approach has been improved to protect different amines including sterically hindered amino acid esters using Boc-Oxyma, as their carbamates in the presence of triethylamine as a base catalyst in neat or solvent medium at room temperature. A significant advantage of this protocol is easy handling, short reaction times, simple workup process, TEA as solvent plus catalyst under mild conditions, avoid column chromatography for purification technique and excellent product yields.

中文翻译：

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Boc-oxyma 作为胺和氨基酸酯叔丁氧基羰基化试剂的新用途

摘要 在室温下，在纯或溶剂介质中，在三乙胺作为碱催化剂存在下，使用 Boc-Oxyma 作为氨基甲酸酯保护不同的胺，包括空间位阻氨基酸酯，已改进了一种简便且合适的方法。该协议的一个显着优点是易于操作、反应时间短、后处理过程简单、TEA 作为溶剂加催化剂在温和条件下、避免柱色谱纯化技术和优异的产品收率。