Synthesis of cobalt tetra-2,3-pyridiniumporphyrazinato with sulfonic acid tags as an efficient catalyst and its application for the synthesis of bicyclic <i>ortho</i>-aminocarbonitriles, cyclohexa-1,3-dienamines and 2-amino-3-cyanopyridines
作者:Mohammad Dashteh、Mohammad Ali Zolfigol、Ardeshir Khazaei、Saeed Baghery、Meysam Yarie、Sajjad Makhdoomi、Maliheh Safaiee
DOI:10.1039/d0ra02172e
日期:——
ortho-Aminocarbonitriles, cyclohexa-1,3-dienamines and 2-amino-3-cyanopyridines were synthesized by [Co(TPPASO3H)]Cl as an efficient pyridiniumporphyrazinato based catalyst.
Creation of molecular functionality and diversity from common startingmaterials while mindful of economic and environmental considerations constitutes a great challenge inmodern organic chemistry. Multi-component reactions (MCRs) are the best agents for reaching this ideal goal. MCRs are convergent reactions, in which three or more startingmaterials react to form a product, where all or most of the atoms
Facile and Efficient Synthesis of Bicyclic <i>ortho-</i>Aminocarbonitrile Derivatives Using Nanostructured Diphosphate Na<sub>2</sub>CaP<sub>2</sub>O<sub>7</sub>
作者:Behrooz Maleki、Hojat Veisi
DOI:10.1080/00304948.2020.1752606
日期:2020.5.3
strategies for the synthesis of the title compounds is that of multicomponent reactions (MCRs). In MCRs three or more reactants form products such that all or most of the initial atoms are present in the final product. This has clear benefits in terms of cost, efficiency and environmental stewardship. There are some literature methods for the synthesis of ortho-aminocarbonitrile derivatives, and these include
polymer supported Brønstedacidicionicliquid catalyst is synthesized by functionalization of Merrifield resin with DABCO, 1,4-butane sultone and concentrated H2SO4 is reported. The structure of synthesized catalyst was confirmed by FT-IR, SEM, EDX, XRD, XPS, TGA and DTA techniques. The catalytic efficiency of novel Brønstedacidic [MerDABCO-BSA][HSO4]2 was evaluated in the synthesis of biscoumarins
在目前的工作中,报道了一种新型聚合物负载的 Brønsted 酸性离子液体催化剂,该催化剂是通过用 DABCO、1,4-丁磺酸内酯和浓 H 2 SO 4对 Merrifield 树脂进行功能化而合成的。通过FT-IR、SEM、EDX、XRD、XPS、TGA和DTA等技术对合成催化剂的结构进行了确认。在 80 °C 下,在乙醇中由 4-羟基香豆素和芳基醛合成双香豆素时,评估了新型 Brønsted 酸性 [MerDABCO-BSA][HSO 4 ] 2的催化效率。此外,邻氨基腈是由环己酮、丙二腈和芳香醛在乙醇:水(70:30 v/v )中合成的。) 在超声波条件下。该催化剂在热和超声条件下表现出良好的稳定性。回收的催化剂在四个循环中表现出良好的催化效率,而催化活性没有显着下降。本协议具有操作简单、反应时间更短和产品产量更高的优点。
SHARANINA L. G.; VAJNERT K.; KONOVKIN A. I.; BASKAKOV YU. A.; VSEVOLOZHSK+, DONETSK. YH-T, DONETSK, 1979, 22 S., BIBLIOGR. 23 NAZV. (RUKOPIS DEP. V O+
作者:SHARANINA L. G.、 VAJNERT K.、 KONOVKIN A. I.、 BASKAKOV YU. A.、 VSEVOLOZHSK+