Studies on the Electronic Absorption Spectra of Some Selected Furan Derivatives. Molecular Orbital Calculations
作者:Rafie Hassan Abu-Eittah、Maher Mohamed Hammed
DOI:10.1246/bcsj.57.844
日期:1984.3
The electronicabsorptionspectra of three groups of furan derivatives: 2-formyl, 2-acetylfuran, and 2-furoic acid, N-(2-furylmethylene)amines and phenylfurans were investigated. The predominant conformation as well as the polarity of the molecule could be predicted from its spectrum. The investigated molecules were proved to be “all planar” configuration which led to substantial interaction between
The straightforward synthesis of new isoindolo[2,1-a]quinolinederivatives from 2,4-disubstituted 1,2,3,4-tetrahydroquinolines bearing a furan fragment via the intramolecular Diels-Alder reaction is reported. The synthesis of key precursors was realized with excellent levels of diastereoselectivity either by Povarov reaction or by a multicomponent condensation approach.
Antifungal and cytotoxic activities of some N-substituted aniline derivatives bearing a hetaryl fragment
作者:Vladímir V. Kouznetsov、Leonor Y. Vargas Méndez、Maximiliano Sortino、Yelkaira Vásquez、Mahabir P. Gupta、Mónica Freile、Ricardo D. Enriz、Susana A. Zacchino
DOI:10.1016/j.bmc.2007.10.034
日期:2008.1
hetaryl fragments were easily prepared from corresponding aldimines derived from commercially available aromatic aldehydes and anilines. 2-Furyl substituted anilines showed very good antifungal activities against dermatophytes, particularly against Trichophyton rubrum (MIC=3.12-6.25microg/mL). In addition, all active compounds, 45-47, 73, and 74, were tested for cytotoxic activities against breast (MCF-7)
Novel Approach to Isoindolo[2,1-<i>a</i>]quinolines: Synthesis of 1- and 3-Halo-Substituted 11-Oxo-5,6,6a,11-tetrahydroisoindolo[2,1-<i>a</i>]quinoline-10-carboxylic Acids
作者:Fedor I. Zubkov、Ekaterina V. Boltukhina、Eugenia V. Nikitina、Alexey V. Varlamov
DOI:10.1055/s-2005-869948
日期:——
A series of 1- and 3-halo-substituted isoindolo[2,1-a]quinolines were obtained by means of electrophilic cyclization of methallyl- and allyl-substituted isoindolo-7-carboxylic acids. The influence of halogen atoms on the stereochemistry of the formation of key intermediates, 3a,6-epoxyisoindoles, was studied.