作者:Sean H. Kennedy、Mark N. Schaeff、Douglas A. Klumpp
DOI:10.1021/acs.joc.9b01437
日期:2019.11.1
Aromatic carboxylic acids are found to undergo reactions with isocyanates, wherein triflic acid promotes the formation of aromatic imide products in fair to good yields. It is proposed that the carboxylic acid group directs the isocyanate electrophile to the ortho-position. This is thought to occur by the formation of a temporary carbamic acid anhydride group, which cleaves upon ortho-functionalization
发现芳族
羧酸与
异氰酸酯反应,其中
三氟甲磺酸以公平的至良好的产率促进芳族
酰亚胺产物的形成。提出
羧酸基团将
异氰酸酯亲电子体引导至邻位。认为这是通过形成临时
氨基甲酸酐基团而发生的,该
氨基甲酸酯基团在邻官能化时裂解。合成了一系列
酰亚胺产物,并合成了潜在的
酪氨酸DNA
磷酸二酯酶II选择性
抑制剂。