Facile syntheses of four-membered aurathietane dioxide [Au–CHR-SO2-CHR] ring systems, and the first isonitrile insertion reaction into a gold(III)–carbon bond
作者:William Henderson、Brian K. Nicholson、Alistair L. Wilkins
DOI:10.1016/j.jorganchem.2005.08.021
日期:2005.11
Cyclometallated gold(III) complexes derived from 2-benzylpyridine, 2-anilinopyridine [AuCl2(C5H4N-X-C6H4)] [X = CH2 (2-bp) or NH (2-anp)] or 2-p-tolylpyridine (tolpy) [AuCl2(C5H4NC6H3CH3)] react with the sulfones RCH2SO2CH2R (R = CN or COPh) in hot methanol with added trimethylamine base to give new aurathietanedioxide complexes containing the Au(CHRSO2CHR) four-membered ring system. The previously
衍生自2-苄基吡啶,2-苯胺吡啶[AuCl 2(C 5 H 4 N-XC 6 H 4)] [X = CH 2(2-bp)或NH(2-anp)]的环金属化金(III)络合物]或2-对甲苯基吡啶(甲苯基)[AuCl 2(C 5 H 4 NC 6 H 3 CH 3)]与砜RCH 2 SO 2 CH 2 R(R = CN或COPh)在热甲醇中反应,并加入三甲胺碱得到含有Au(CHRSO 2CHR)四元环系统。该方法还合成了先前报道的环加成的二甲基苄基胺(MeO-damp)络合物[Au CH(COPh)SO 2 CH(COPh)}(Me 2 NCH 2 C 6 H 3 OMe)]。就COPh取代基跨四元环的方向而言,是主要(反式)和次要(顺式)异构体的混合物。一个复合物与所述的反应吨在异腈成的Au-C键的插入回流二氯甲烷结果BuNC反苯环,随后质子转移。对该产物进行X射线晶体结构测定。