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
An efficient synthesis of 2‐amino‐4a,5,6,7‐tetrahydronaphthalene‐1,3,3(4H)‐tricarbonitriles via the tandem four‐component condensation of one equivalent of aromatic aldehyde, cyclohexanone, and two equivalents of malononitrile in ionicliquids was undertaken. Up to four new bonds and one new ring were formed in one‐pot with water as the only by‐product in this multi‐component procedure.
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
A glucose-containing imidazolium salt beta-1-imidazole-2,3,4,6-tetraacetyl-D-glucopyranosyl bromide was firstly used as efficient noncovalent organocatalyst to promote the solvent-free preparation of ortho-aminocarbonitriles via a four-component condensation of aromatic aldehyde, cyclohexanone, and 2 equiv of malononitrile at room temperature. Seven bonds were cleaved while four new bonds were formed and a six-membered ring was constructed in one-pot. (C) 2015 Published by Elsevier Ltd.