通过铜催化的5-(2-溴芳基)-1 H-吡唑与羰基化合物和氨水的串联反应合成吡唑并[1,5- c ]喹唑啉衍生物
摘要:
通过铜催化的5-(2-溴芳基)-串联反应,实用高效地合成吡唑并[1,5- c ]喹唑啉和5,6-二氢吡唑并[1,5 - c ]喹唑啉,包括几种螺环化合物。已开发出在空气中具有羰基化合物和氨水的1 H-吡唑。与有关吡唑并[1,5- c ]喹唑啉衍生物的文献方法相比,本文报道的合成方法具有容易获得和廉价的起始原料和试剂,底物范围广,反应条件温和的优点。
General and efficient copper-catalyzed aerobic oxidative synthesis of N-fused heterocycles using amino acids as the nitrogen source
作者:Qing Liu、Haijun Yang、Yuyang Jiang、Yufen Zhao、Hua Fu
DOI:10.1039/c3ra41644e
日期:——
efficient copper-catalyzed aerobic oxidative method for the synthesis of N-fused heterocycles has been developed by using readily available α-amino acids as the nitrogen source. The reactions underwent N-arylation, aerobic oxidative dehydrogenation, intramolecular cyclization and dissociation of formic acid. This method should provide a general and practical strategy for the construction of N-fused