摘要
利用[Rh(CO)2(μCl)]2与diphos反应,合成了3种新型Rh(diphos)(CO)Cl配合物,其中diphos=d(tBu)Pe,dCyhPe,dCypPe。这3种配合物均通过红外光谱和元素分析等方法测定确认。利用上述合成的新型Rh的羰基双膦配合物在室温和常压下,首次成功地进行了苯的光羰化反应性能的研究,反应产物苯甲醛和苯甲醇均经色质分析鉴定确认。结果表明,光反应都具有较高的选择性。同时对光羰化反应的机理作了合理的解释。
The three novel Rh(diphos)(CO)Cl complexes have been synthesized from the reaction of [Rh(CO) 2(μ Cl)] 2 with the diphosphines (diphos=d(t Bu)Pe, dC yp Pe, dC yh Pe). All the three complexes have been characterized by IR spectra and elemental analysis. The photochemical carbonylations of benzene catalyzed by these novel rhodium carbonyl diphosphine complexes have been all first investigated under 1.013×10 5 Pa pressure of carbon monoxide at room temperature. The benzaldehyde and benzyl alcohol of the reaction products were identified by the gas chromatograph mass spectrometry. Results showed that these photochemical carbonylations of benzene had high catalytic selectivity. In addition, the hypothetical mechanism of photochemical carbonylation of benzene has been suggested.
出处
《南京化工大学学报》
1997年第3期25-29,共5页
Journal of Nanjing University of Chemical Technology(Natural Science Edition)
基金
国家自然科学基金
关键词
过渡金属
有机配合物
苯
光羰化反应
配合物
organotransition metal complex\ C H bond activation\ functionalization