Various 2-amino-4-aryl-3-cyano-4H-chromenes have been quantitatively prepared by dry ball milling in the presence of catalytic Na2CO3. The orientation specificities are discussed; existing misattributions are pointed out and clarified by NMR.
在存在催化剂Na2CO3的干磨球磨条件下,已经成功合成了各种2-氨基-4-芳基-3-腈基-4H-色酮化合物。讨论了其立体构型的特异性,通过核磁共振技术指出和澄清了已有的错误归属。