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铜催化苯甲酰胺有氧环化合成7-叔烷基异喹啉二酮
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作者 邓佑林 唐石 +4 位作者 李立洋 付美玲 王良能 陈蓝艳 周上睿 《应用化学》 CAS CSCD 北大核心 2016年第10期1175-1181,共7页
发展了一种高效、简单的铜/空气催化体系催化的苯甲酰胺串联自由基环化合成7-叔烷基异喹啉二酮的反应。在廉价CuI存在下,空气环境中,N-烷基-N-甲基丙烯酰基苯甲酰胺与AIBN发生串联自由基加成/环化/碳碳偶联反应,以52%-73%的产率合成了... 发展了一种高效、简单的铜/空气催化体系催化的苯甲酰胺串联自由基环化合成7-叔烷基异喹啉二酮的反应。在廉价CuI存在下,空气环境中,N-烷基-N-甲基丙烯酰基苯甲酰胺与AIBN发生串联自由基加成/环化/碳碳偶联反应,以52%-73%的产率合成了一系列的7-取代异喹啉二酮。此研究为合成具有潜在药用价值的含氰取代异喹啉二酮提供了一条快速、简单、温和的构建途径。 展开更多
关键词 叔烷基异喹啉二酮 苯甲酰胺 有氧环化 铜催化
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Solvothermal synthesis of Co-substituted phosphomolybdate acid encapsulated in the UiO-66 framework for catalytic application in olefin epoxidation 被引量:4
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作者 Dianwen Hu Xiaojing Song +4 位作者 Shujie Wu Xiaotong Yang Hao Zhang Xinyu Chang Mingjun Jia 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2021年第2期356-366,共11页
Hybrid composites of phosphomolybdic acid@UiO-66(PMo12@UiO-66)and Co-substituted phosphomolybdic acid@UiO-66(PMo11Co@UiO-66)were synthesized using the direct solvothermal method.A variety of characterization results d... Hybrid composites of phosphomolybdic acid@UiO-66(PMo12@UiO-66)and Co-substituted phosphomolybdic acid@UiO-66(PMo11Co@UiO-66)were synthesized using the direct solvothermal method.A variety of characterization results demonstrated that phosphomolybdic acid(PMo12)or Co-substituted phosphomolybdate acid(PMo11Co)clusters are uniformly dispersed in the cages of Zr-based metal-organic UiO-66 frameworks.The catalytic properties of these hybrid composites were investigated by applying the epoxidation of olefins with tert-butyl hydroperoxide as the oxidant.Compared to PMo12@UiO-66,PMo11Co@UiO-66 showed a much higher catalytic activity and was simply recovered by filtration and reused for at least ten runs without significant loss of catalytic activity.Particularly,PMo11Co@UiO-66 can efficiently convert cyclic olefins like limonenes to epoxides,and its selectivity to 1,2-limonene oxide reached 91%in the presence of a radical inhibitor such as hydroquinone.The excellent catalytic activity and stability of the hybrid composite PMo11Co@UiO-66 are mainly attributed to the uniform distribution of highly active PMo11Co units within the smaller cages of UiO-66,to the suitable surface polarity of the hybrid composite for facilitating the access of reagents and solvent,and to the strong interface-interactions between the polyoxometalate and the UiO-66 framework. 展开更多
关键词 POLYOXOMETALATE Metal-organic frameworks OLEFINS EPOXIDATION Solvothermal synthesis
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Iron Arene Salts as Initiators for Thermal Curing of Epoxides by Photo-catalysis 被引量:1
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作者 王涛 李保山 +1 位作者 于萌 万平玉 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2005年第2期250-253,共4页
[Cyclopentadien-Fe-naphthalene]BF4(CFN) and [cyclopentadien-Fe-anisole]BF4(CFA) as thermal cationic initiators for the curing of epoxide E44 and GGE were investigated. CFN brought out the curing of E44 at 89.1℃ and t... [Cyclopentadien-Fe-naphthalene]BF4(CFN) and [cyclopentadien-Fe-anisole]BF4(CFA) as thermal cationic initiators for the curing of epoxide E44 and GGE were investigated. CFN brought out the curing of E44 at 89.1℃ and that of GGE at 148.7℃. However, CFA had much less thermal initiating activity under 300℃. Under UV radiation for short time, the thermal initiating activities of CFN and CFA were enhanced obviously. It was observed that the initiating onset temperature decreased and the evolved heat of the curing increased. Both CFN and CFA can carry out the polymerization of E44 and GGE near 85℃ and 112℃ by UV radiation. 展开更多
关键词 thermal initiators photo-catalyses EPOXIDE
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