Synthesis and Reactivity of Some Nitroaryl Complexes of HgII and AuIII — Synthesis of a Substituted Biphenyl by C–C Coupling – Crystal Structure of [Hg(C6H4NO2-3, OnBu-6)2]

✍ Scribed by Vicente, Jose ;Bermúdez, María-Dolores ;Carrión, Francisco-José ;Jones, Peter G.

• Publisher: Wiley (John Wiley & Sons)
• Year: 1996
• Tongue: English
• Weight: 534 KB
• Volume: 129
• Category: Article
• ISSN: 0009-2940
• DOI: 10.1002/cber.19961291114

✦ Synopsis

Abstract

4‐Butoxynitrobenzene reacts with [Hg(O~2~CCF~3~)~2~] and LiCl to give [Hg(R)Cl] [R = C~6~H~3~NO~2~‐3, O__n__Bu‐6 (1)] which is symmetrized by Me~4~NCl to give [HgR~2~] (2), the crystal structure of which has been determined. The reaction of 2 with Me~4~N[AuCl~4~] affords Me~4~N[Au(R)Cl~3~] (3) by a facile transmetallation process. Complex 3 reacts with PPh~3~ (1:1) to give cis‐[Au(R)(PPh~3~)Cl~2~] (4). The diaryl complex [‐Ph‐2)(R)Cl] (5) is obtained by reaction of 3 with [Hg‐(C~6~H~4~N=NPh‐2)~2~] through a second transmetallation reaction. Complex 5 and PPh~3~ (1:1) give [AuClPPh~3~] and the C–C coupling biphenyl RC~6~H~4~N=NPh‐2 (6).