Synthesis, Cross-Coupling, and Anionic Cyclization of ortho-Substituted Naphthaleneboronic Esters
作者:Mikael Begtrup、Morten Lysén、Maurice Madden、Jesper Kristensen、Per Vedsø、Camilla Zøllner
DOI:10.1055/s-2006-950239
日期:2006.10
1-Fluoro-, 1-chloro- and 1-cyanonaphthalene were lithiated and then borylated at the 2-position. The 1-substituted naphthaleneboronic esters were cross-coupled with aryl halides to give 2-aryl-1-fluoro-, 2-aryl-1-chloro- and 2-aryl-1-cyanonaphthalenes. The 2-aryl-1-cyano- and 2-aryl-1-fluoronaphthalenes were reacted with n-butyllithium or lithium morpholide to give new benzophenanthridine derivatives.
1-氟萘、1-氯萘和1-氰基萘在2-位进行锂化和硼化反应。生成的1-取代萘硼酸酯与芳基卤化物发生交叉偶联反应,得到2-芳基-1-氟萘、2-芳基-1-氯萘和2-芳基-1-氰基萘。进一步与正丁基锂或吗啡啉锂反应,得到新的苯并菲啶类衍生物。