Inorganic-organic hybrid chitosan-based Schiff base-Ni complex as a novel, highly efficient and recyclable heterogeneous catalyst for synthesis of pyrazolophthalazinediones
作者:Hossein Naeimi、Sepideh Lahouti
DOI:10.1002/aoc.3732
日期:2017.10
based on chitosan was synthesized through treatment of chitosan and p‐dimethylaminobenzaldehyde in methanol solution. This biopolymeric Schiff base was used to prepare a new first row transition metal complex of Ni(II). The biopolymeric Schiff base and the synthesized tetra‐coordinated complex were characterized using Fourier transform infrared, 1H NMR and 13C NMR techniques. Then, an efficient synthetic
通过在甲醇溶液中处理壳聚糖和对二甲基氨基苯甲醛合成了基于壳聚糖的席夫碱。这种生物聚合物席夫碱被用来制备新的第一行过渡金属镍(II)络合物。使用傅立叶变换红外光谱,1 H NMR和13 C NMR技术对生物聚合席夫碱和合成的四配位配合物进行表征。然后,一种有效的合成方法,用于功能化的1 H-吡唑并[1,2- b茚三酮和丙二腈与3-芳基氨基-5-5,5-二甲基-2-环己烯酮的一锅多米诺反应在Ni(II)的壳聚糖基席夫碱配合物的催化下成功开发了] phthalazine-5,10-diones。室内温度。该方案的优点是后处理简便,反应时间短,产物收率高,并且催化剂可以很容易地从反应混合物中分离出来并循环使用,而不会损失催化活性。
Phosphomolybdic Acid (PMA) Catalyzed Highly Efficient and Rapid Synthesis of β-Enaminones
作者:K. Nagaiah、K. V. Purnima、D. Sreenu、S. Jhansi、R. Srinivasa Rao、J. S. Yadav
DOI:10.1080/00397911.2010.524339
日期:2012.2.15
beta-Enamino derivatives have been synthesized by the condensation of amines and beta-dicarbonyl compounds in the presence of 1 mol% of phosphomolybdic acid (PMA) at room temperature in good to excellent yields.
Synthesis of 3,4-Dihydrophenazine-1(2<i>H</i>)-ones