Reactions of nickelocene with lithium and magnesium alkyls containing β-hydrogen atoms1Dedicated to Professor Ken Wade on the occasion of his 65th birthday in recognition of his outstanding contributions to organometallic chemistry.1
作者:Stanisław Pasynkiewicz、Antoni Pietrzykowski、Lidia Trojanowska、Piotr Sobota、Lucjan Jerzykiewicz
DOI:10.1016/s0022-328x(97)00179-4
日期:1998.1
The reaction of nickelocene with BrMgR, where R=CH2CH(CH3)C6H5, C2H5, (CH2)7CH3 and CH2CH2CH3, have been studied. It was found that the presence of β-hydrogen in R did not cause the total splitting of the carbon–nickel bond but alkylidynetrinickel clusters were formed. It is the first example of the synthesis of alkylidynetrinickel clusters (NiCp)3CR′ from the organonickel species possessing β-hydrogen
研究了新世古与BrMgR的反应,其中R = CH 2 CH(CH 3)C 6 H 5,C 2 H 5,(CH 2)7 CH 3和CH 2 CH 2 CH 3。研究发现,R中β-氢的存在并没有引起碳-镍键的完全分裂,而是形成了亚烷基炔基三镍簇。这是从具有β的有机镍物种合成亚烷基炔基三镍簇(NiCp)3 CR'的第一个例子-氢。此外trinickel集群,总是形成在所有研究的反应中的下列化合物:(NICP)4 ħ 2,(NICP)6,CPNI(η 3 -C 5 ħ 7)和(NICP)2(μ -C 5 ħ 6)。(NiCp)3 CCH(CH 3)Ph的结构已通过单晶X射线衍射研究确定。