Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, USA.
Angew Chem Int Ed Engl. 2013 Jul 22;52(30):7795-9. doi: 10.1002/anie.201301057. Epub 2013 Jun 20.
Golden aryne? Gold aryne complexes are inferred as transition states in dual gold-catalyzed cyclizations of cis-enediynes (see scheme; DCE = 1,2-dichloroethane). They are better described as ortho-aurophenyl cations, which react with weak nucleophiles and undergo facile intramolecular insertions into C(sp(3))-H bonds. Indanes, fused heteroarenes, and phenol derivatives are readily prepared using this method.
金炔烃?金炔烃配合物被推断为顺式二炔(见方案;DCE=1,2-二氯乙烷)双金催化环化反应的过渡态。它们更适合被描述为邻-金芳基阳离子,与弱亲核试剂反应,并容易发生分子内插入到 C(sp(3))-H 键中。使用这种方法可以很容易地制备茚、稠合杂环芳烃和苯酚衍生物。