Mono-, di-, and tetra-aurated derivatives of barbituric acid, including a new type of polynuclear gold compound. Crystal structure of 1,3-bis(triphenylphosphinegold)-5,5-diethylbarbituric acid
作者:Flavio Bonati、Alfredo Burini、Bianca Rosa Pietroni、Bruna Bovio
DOI:10.1016/s0022-328x(00)99350-1
日期:1986.12
c acid, which were characterized as N-, N,N′-, C,C′-, or N,N′,C,C-gold derivative,s respectively, by IR, 1H, 13C and 31P NMR spectroscopy. In the case of 1,3-(LM)(L″M)-5,5-diethylbarbituric acid compounds with M = gold and L″ either Cy3P, Ph3As, or (4-tolyl)3P, or ML = ML″ = HgMe were prepared. An X-ray diffraction study of 1,3-(LAu)2-5,5-Et2-pyrimidin-2,4,6-trione · 3C6H6 revealed that (a) the heterocyclic
巴比妥酸(2,4,6-嘧啶三酮)或其衍生物与LAuCl(L =三苯基膦)反应,得到3-LAu-5,5-二乙基-,1,3-(L'Au)2 -5,5-二乙基-(L'= L或L'= Cy 3 P),1,3-二甲基-5,5-双(LAu)-或1,3,5,5-四-(LAu)巴比妥酸通过IR,1 H,13 C和31 P NMR光谱分别表征为N-,N,N '-,C, C'-或N,N',C,C-金衍生物。对于1,3-(LM)(L''M)-5,5-二乙基巴比妥酸化合物,其中M =金和L''为Cy 3 P,Ph 3 As或(4-甲苯基)3制备P或ML = ML''= HgMe。1,3-(LAu)2 -5,5 -Et 2-嘧啶-2,4,6-三酮·3C 6 H 6的X射线衍射研究表明(a)杂环是平面的,(b )没有分子间或分子内的Au⋯Au相互作用,并且(c)每个金原子周围的配位近似线性(PAuN178.3(4)°,AuN2