Spontaneous Cyclization of <i>peri</i>-Diiminonaphthalenes Leading to the Formation of Benzo[<i>de</i>]isoquinolines and Stable Benzo[<i>de</i>]isoquinoliniums
作者:Dmitrii O. Tolochenko、Semyon V. Tsybulin、Artyom A. Yakubenko、Elena Yu. Tupikina、Alexander S. Antonov
DOI:10.1021/acs.orglett.3c00035
日期:2023.2.17
studied. Instead of the expected peri-diimines, the reaction leads to the formation of three types of benzo[de]isoquinolines. Treatment of unsubstituted 1,8-dilithionaphthalene with aromatic nitriles results in the formation of 1-amino-1,3-diaryl-1H-benzo[de]isoquinolines. In contrast, 4,5-dilithio-1,8-bis(dimethylamino)naphthalene gives an aromatic isoquinolonium cation via elimination of ammonia under
研究了环二锂萘与有机氰化物的相互作用。该反应导致形成三种类型的苯并[ de ]异喹啉,而不是预期的周二亚胺。用芳香族腈处理未取代的 1,8-二锂萘会导致形成 1-氨基-1,3-二芳基-1 H -苯并[ de ]异喹啉。相反,4,5-dilithio-1,8-bis(dimethylamino)naphthalene 通过在相同条件下消除氨产生芳族异喹啉阳离子。在用叔丁基氰化物处理后,两种二锂萘都会转变为 1-amino-3,4-di- tert -butyl-4 H -benzo[de ]异喹啉。观察到的反应性得到了量子化学计算的支持。