Trimethyl borate/magnesium halide complex-induced one-pot homologation reactions of isoquinoline with dialkyl-TMP-zincate
作者:Hye Ji Seo、Sung Keon Namgoong
DOI:10.1016/j.tetlet.2012.05.002
日期:2012.7
one-pot homologation reactions of isoquinoline with lithium dialkyl-TMP-zincate⋅2MgBrCl/trimethyl borate are described. 1-Alkylisoquinolines (2, 3A, 4A, 5A, 6, and 7) and 1-alkyl-3,4-dihydroisoquinolines (3B, 4B, and 5B) are easily prepared under the presented reaction conditions. The role of the B(OMe)3/MgBrCl complex is examined in these homologation reactions. The specific reaction mechanisms, including
描述了异喹啉与二烷基锂-TMP-锌酸酯·2MgBrCl /硼酸三甲酯的新型一锅同源反应。1-Alkylisoquinolines(2,3A,4A,5A,6和7)和1-烷基-3,4-二氢异喹啉(3B,4B,和5B)很容易呈现的反应条件下制备。在这些同源反应中检查了B(OMe)3 / MgBrCl复合物的作用。提出了具体的反应机理,包括从1-异喹啉基锌酸酯的烷基配体的1,2-迁移。还讨论了1-异喹啉基锌酸酯的配体的迁移能力。