Heterogeneously Catalyzed One-pot Synthesis of Aldimines from Primary Alcohols and Amines by Supported Ruthenium Hydroxides
作者:Jung Won Kim、Jinling He、Kazuya Yamaguchi、Noritaka Mizuno
DOI:10.1246/cl.2009.920
日期:2009.9.5
The one-pot synthesis of aldimines fromprimaryalcohols and amines via sequential reactions of alcohol oxidation and dehydrative condensation could efficiently be promoted by supported ruthenium h...
Synthesis and molecular docking studies of imines as α-glucosidase and α-amylase inhibitors
作者:Analy Aispuro-Pérez、Juan López-Ávalos、Fernando García-Páez、Julio Montes-Avila、Lorenzo A. Picos-Corrales、Adrián Ochoa-Terán、Pedro Bastidas、Sarita Montaño、Loranda Calderón-Zamora、Ulises Osuna-Martínez、Juan I. Sarmiento-Sánchez
DOI:10.1016/j.bioorg.2019.103491
日期:2020.1
(E)-1-phenyl-N-(pyridin-2-yl)methanimine (3c) displayed similar activity that acarbose against α-glucosidase. The moleculardockingstudies in α-glucosidase and α-amylase reveal that aryl imines mainly establish an H-bond with the R2-subtituent and hydrophobic interactions with the R1-subtituent. The docking analysis reveals these synthetic aryl imines 3d-i interact in same active site than acarbose drug in
Tandem Amination/Cycloisomerization of Aryl Propargylic Alcohols with 2-Aminopyridines as an Expedient Route to Imidazo[1,2-a]pyridines
作者:Ping Liu、Chun-Lin Deng、Xinsheng Lei、Guo-qiang Lin
DOI:10.1002/ejoc.201101053
日期:2011.12
A new tandemroute leading to imidazo[1,2-a]pyridines has been explored through the direct amination of arylpropargylicalcohols with 2-aminopyridines and their subsequent intramolecular cycloisomerization. A ZnCl2/CuCl system has been developed to promote this transformation, which resulted in various imidazo[1,2-a]pyridines in moderate to good yields.
Rh(III)-Catalyzed Imidoyl C–H Carbamylation and Cyclization to Bicyclic [1,3,5]Triazinones
作者:Danielle N. Confair、Nathaniel S. Greenwood、Brandon Q. Mercado、Jonathan A. Ellman
DOI:10.1021/acs.orglett.0c03393
日期:2020.11.20
[1,3,5]triazinones from a diverse array of imines coupled with ethyl (pivaloyloxy)carbamate is reported. The preparation of [5,6]- and [6,6]-bicyclic heterocycles substituted with aryl, alkyl, and alkoxy groups demonstrated a broad reaction scope. The efficiency of this approach was further enhanced with the development of a three-component variant featuring in situ imineformation. X-ray crystallographic
报道了从各种亚胺与(新戊酰氧基)氨基甲酸乙酯偶联的 Rh(III) 催化合成双环 [1,3,5] 三嗪酮。[5,6]-和[6,6]-被芳基、烷基和烷氧基取代的双环杂环的制备证明了广泛的反应范围。随着以原位亚胺形成为特征的三组分变体的开发,这种方法的效率得到进一步提高。通过亚胺酰基 C-H 活化形成的红环的 X 射线晶体学表征为所提出的机制提供了支持。
Cinchona-derived ammonium salts-catalyzed aza Diels–Alder reaction of Danishefsky’s diene with imines
作者:Yohan Park、Eunyoung Park、Hyojun Jung、Yeon-Ju Lee、Sang-sup Jew、Hyeung-geun Park
DOI:10.1016/j.tet.2010.12.002
日期:2011.2
Described is the efficiency of cinchona-derived quaternary ammonium salts as Lewis acid organocatalysts in aza Diels–Alder reaction of Danishefsky’s diene 1 with imines 2 and 16, providing 1,2-dialkyl-2,3-dihydro-4-pyridinones 3 and cyclic dihydropyridones 17, respectively. Among the nine of cinchonidine-derived quaternary ammonium catalysts prepared, N-2′,3′,4′-trifluorobenzyl-O-benzylcinchonidinum