【摘 要】
：
C,N-Cyclic azomethine imines in which one nitrogen and one carbon atom are incorporated into a polycyclic system are convenient synthons for building up various
【机 构】
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SchoolofChemicalEngineeringandLightIndustry,GuangdongUniversityofTechnology,Guangzhou510006,China
【出 处】
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第五届岭南有机化学论坛暨华南理工大学-兰州大学有机化学双边论坛
论文部分内容阅读
C,N-Cyclic azomethine imines in which one nitrogen and one carbon atom are incorporated into a polycyclic system are convenient synthons for building up various heteropolycyclic,fused,and spirocyclic systems often exhibiting biological activity.2 Of the systems,Dinitrogen-fused heterocycles,especially pyrazolidine and pyrazolone derivatives,are broadly used in medicinal chemistry as important structural elements.Recently,we developed several methods to synthesize five-six-and seven-membered heterocycles with C,N-cyclic azomethine imines in high yields.
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