β-Nitrostyrenes as electrophiles in Parham cyclization chemistry: reaction with o-lithiobenzonitrile
作者:Adam J. Clarke、David A. Hunt
DOI:10.1016/j.tetlet.2009.03.217
日期:2009.6
β-Nitrostyrenes react with o-lithiobenzonitrile, generated from the requisite aryl bromide at −100 °C by bromine–lithium exchange with n-butyllithium in THF, to afford 2-nitro-3-phenyl-3H-inden-1-ylamines resulting from 1,4-addition to the β-nitrostyrene followed by intramolecular capture of the resultant nitronate anion by the ortho-cyano functional group.
β-硝基苯乙烯与邻-硫代苄腈反应,在-100°C下通过溴-锂与正丁基锂在THF中的交换,由必需的芳基溴化物生成,得到2-硝基-3-苯基-3 H-茚满-1-基胺通过将1,4-加成至β-硝基苯乙烯中,然后通过邻氰基官能团分子内捕获所得的硝酸根阴离子而得到。