Reductive Alkylation of Quinolines to <i>N</i>-Alkyl Tetrahydroquinolines Catalyzed by Arylboronic Acid
作者:Priyanka Adhikari、Dipanjan Bhattacharyya、Sekhar Nandi、Pavan K. Kancharla、Animesh Das
DOI:10.1021/acs.orglett.1c00302
日期:2021.4.2
A boronic acid catalyzed one-pot tandem reduction of quinolines to tetrahydroquinolines followed by reductive alkylation by the aldehyde has been demonstrated. This step-economcial synthesis of N-alkyl tetrahydroquinolines has been achieved directly from readily available quinolines, aldehydes, and Hantzsch ester under mild reaction conditions. The mechanistic study demonstrates the unique behavior
已经证明了硼酸催化喹啉单锅串联还原为四氢喹啉,然后通过醛还原烷基化。N-烷基四氢喹啉的这种步骤经济的合成方法是在温和的反应条件下,从容易获得的喹啉,醛和汉茨酯直接完成的。机理研究证明了有机硼催化剂作为路易斯酸和氢键供体的独特行为。