Reaction of tris-arylgallium(iii) with water: biaryl coupling versus Ga–C hydrolysis
作者:Peter J. Nichols、Stavroula Papadopoulos、Colin L. Raston
DOI:10.1039/b002422h
日期:——
Reaction of toluene solutions of
tris(aryl)gallium(III) compounds with water results in
intra-molecular biaryl coupling (70% yield) and an oligomeric
organogallium(III) hydroxide/oxide
[Ga12O14H4(aryl)12], whereas
reaction in THF with water leads to hydrolysis, formation of arylH, and for
aryl = Ph the trimeric THF hydrogen bonded trimer,
[Ph2Ga(μ-OH)]3·3THF.
三(芳基)镓(III)化合物的甲苯溶液与水反应会产生分子内双芳基偶联(产率为 70%)和低聚有机镓(III)氢氧化物/氧化物 [Ga12O14H4(芳基)12],而在 THF 中与水反应则会导致水解,形成芳基 H,对于芳基 = Ph,则会产生三聚 THF 氢键三聚体 [Ph2Ga(δ-¼-OH)]3Â-3THF。