- Book Review
The parts of a molecule are connected by chemical bonds such as the covalent bond, the ionic bond, the hydrogen bond, etc.[...]
December 1999 - 7 articles
The parts of a molecule are connected by chemical bonds such as the covalent bond, the ionic bond, the hydrogen bond, etc.[...]
When I was being trained in dyestuff research, development and production at Ciba-Geigy in 1994, my supervisors as senior dyestuff chemists, brought to my attention the Ullmann’s Encyclopedia of Industrial Chemistry.[...]
The encyclopedia of Industrial Organic Chemicals brings together around 200 detailed and thoroughly edited articles on organic starting materials and intermediates.[...]
In the course of our recent studies on the reactivity of some 4-amino-2-pyridones [1-3] we accomplished the nitrosation of the N,N-disubstituted 4-amino-2-pyridone 2.[...]
The direct synthesis of 4-(monoalkylamino)coumarins from primary amines [1] was developed on the basis of the reaction of 4-hydroxycoumarin with ammonium acetate in acetic acid as reported by Joshi et al. [2].[...]
Nuclear magnetic resonance (NMR) spectroscopy has almost become an essential analytical tool for the chemist. High-resolution one- and multi-dimensional NMR, timedomain NMR, and NMR microscopy are but a few of the NMR techniques at a chemist's dispos...
Based on the biological properties of epoxyquinols from natural sources, the title compound was synthesised as a potential antitumor agent. Its molecular structure was partially confirmed by NMR studies. The detailed structure was established by X-ra...