An Innovative Protocol for the Synthesis of 3-(Pyridin-2-yl)-5-<i>sec</i>-aminobiphenyl-4-carbonitriles and 9,10-Dihydro-3-(pyridine-2-yl)-1-<i>sec</i>-aminophenanthrene-2-carbonitriles
作者:Umesh D. Patil、Pramod P. Mahulikar
DOI:10.1002/jhet.1712
日期:2013.8
Herein, we present an innovative, novel, and highly convenient protocol for the synthesis of 3‐(pyridin‐2‐yl)‐5‐sec‐aminobiphenyl‐4‐carbonitriles (6a, 6b, 6c, 6d, 6e, 6f, 6g) and 9,10‐dihydro‐3‐(pyridine‐2‐yl)‐1‐sec‐aminophenanthrene‐2‐carbonitriles (10a, 10b, 10c, 10d, 10e), which have been delineated from the reaction of 4‐sec‐amino‐2‐oxo‐6‐aryl‐2H‐pyran‐3‐carbonitrile (4a, 4b, 4c, 4d, 4e, 4f, 4g)
在此,我们提出了一种创新,新颖且高度方便的方案,用于合成3-(吡啶-2-基)-5-秒-氨基联苯-4-腈(6a,6b,6c,6d,6e,6f,6g)和9,10-二氢-3-(吡啶-2-基)-1-秒-氨基菲-2-腈(10a,10b,10c,10d,10e),已从4秒的反应中划定氨基2氧6芳基2 H吡喃3腈(4a,4b,4c,4d,4e,4f,4g)和4 sec-氨基-2-氧代-5,6-二氢-2 H-苯并[ h ]亚甲基3-腈(9a,9b,9c,9d,9e)在室温下使用KOH / DMF系统与2-乙酰基吡啶(5)进行环转化反应。该方法的显着特征是为合成不对称的1,3-三芳基化合物(如3-(吡啶-2-基)-5-秒-氨基联苯-4-腈)提供无过渡金属的途径(6a,6b,6c,6d,6e,6f,6g)和9,10-二氢-3-(吡啶-2-基)-1秒-氨基菲-2-腈(10a,10b,10c,10d,10e)。该反应的新颖之处在于,它是由2