作者:F.M. Stoyanovich、R.G. Karpenko、G.I. Gorushkina、Ya.L. Gol'dfarb
DOI:10.1016/0040-4020(72)88153-5
日期:1972.1
The reaction of t-butyl phenyl sulfone (Ia) with n-butyllithium at −20 to −30° in THF-ether leads to lithium (21-t-butyl-61-lithium-biphenyl)sulfinate (VI). On hydrolysis 21-t-butylbiphenyl-2- sulfinic acid (VII) was obtained whereas carboxylation led to 61-carboxy-21-t-butylbiphenyl-2-sulfinic acid (VIIIa). The structures were confirmed by physical methods as well as by hydrodesulfurization and by
叔丁基苯基砜(Ia)与正丁基锂在THF醚中于-20至-30°反应,生成亚磺酸锂(2 1-叔丁基-6 1-锂-联苯基)亚磺酸锂(VI)。水解时获得2 1-叔丁基联苯-2-亚磺酸(VII),而羧化反应生成6 1-羧基-2 1-叔丁基联苯-2-亚磺酸(VIIIa)。通过物理方法以及加氢脱硫和在Friedel-Crafts条件下环化为二苯并噻吩衍生物来确认结构。对于观察到的反应,提出了一种机理,包括将叔丁基苯基砜(II)的邻锂衍生物添加到3-锂-1,2-脱氢苯(IV)中,然后进行重排。重排包括从磺酰基到联苯的相邻芳核的t-Bu迁移。