Several 2-(arylmethyl) derivatives of 3,6-dimethyl- and 3,4,5,6-tetramethylbenzonitriles have been prepared in good yields most likely by a tandem addition-rearrangement reaction of the appropriate bromoarene and arylacetonitrile under aryne-forming conditions. Additionally, several 2-aryl-2-(1,4-dimethyl-2-naphthyl)acetonitriles were obtained by the usual aryne mechanism from the reaction of 2-bromo-1,4-dimethylnaphthalene and arylacetonitriles with lithium tetramethylpiperidide.
3,6 二甲基和 3,4,5,6 四甲基苯腈的几种 2-(芳基甲基)衍
生物以良好的收率制备出来,很可能是通过适当的
溴芳烃和芳基
乙腈在芳炔形成条件下的串联加成-重排反应制备出来的。此外,在 2-
溴-
1,4-二甲基萘和芳基
乙腈与
四甲基哌啶锂的反应中,通过通常的芳香族机理得到了几个 2-芳基-2-(1,
4-二甲基-2-
萘基)
乙腈。