Acylation of representative carbohydrate derivatives was accomplished with in situ generated 1-acyloxy-1H-benzotriazoles. The observed high regioselectivity, mild reaction conditions and convenient work-up make the presented one-pot procedure generally applicable and more advantageous than acylations with previously introduced reagents, including N-acylimidazoles.
代表性
碳水化合物衍
生物的酰化反应是通过原位生成的1-酰氧基-1H-苯并三唑完成的。所观察到的较高的位选择性、温和的反应条件和简便的后续处理使得所提出的单锅法具有普遍适用性,并且比之前引入的试剂(包括N-酰基
咪唑)的酰化反应更具优势。