Diboron substructures have emerged as a promising scaffold for the catalytic dehydrative amidation of carboxylic acids and amines. This Letter describes the design, synthesis, and evaluation of the first isolable N(BOH)2 compound as an amidation catalyst. The new catalyst outperforms the previously reported B3NO2 heterocycle catalyst, with respect to turnover frequency, albeit the former gradually
二
硼子结构已成为
羧酸和胺的催化
脱水酰胺化的有前途的支架。这封信描述了第一个可分离的 N(BOH) 2化合物作为
酰胺化
催化剂的设计、合成和评估。就周转频率而言,新
催化剂优于先前报道的 B 3 NO 2杂环
催化剂,尽管前者在暴露于胺时会逐渐分解。这项工作为设计更好的直接
酰胺化
催化剂开辟了一条途径。