The preferential orientation of the substituents has been established according to their nature and to the solvents by correlation to the vicinal and the long-range coupling constants.doi:10.1002/hlca.19700530407Cocu F. GWolczunowicz GBors L
Host status for the nematode was determined mainly from changes in total populations, but the presence of eggs in the uteri of females and changes in the numbers of adults provided additional criteria. The nematode multiplied on relatively more woody perennials than on herbaceous crop plants or ...
A number of aromatic derivatives of malonaldehyde have been studied by NMR ( 13 C, 1 H) and IR. These techniques show that these compounds exist in solution as Z enol formKirsch, G.Laboratoire de carbochimie et de synthèse organique, Université de Metz 57045 Metz‐Cédex, FranceMieloszyns...
The fragmentation of 3,6-dibenzyl, 2,5-diketo piperazine in the mass spectrometry is presented. The general mechanism is proposed and discussed.Krzysztof JankowskiLouis Varfalvycanadian journal of chemistry
The frequencies of the 1 L a transitions of polycyclic aromatic aldehydes are related linearly to the energy gap between the highest bonding and the lowest anti-bonding orbitals in these molecules calculated by an iterative Hückel-L. C. A. O.-method. Solutions of the same derivatives and ...
Posternak T, Reymond D, Friedli H (1955) Recherches dans la serie des cyclitols XXII. Configuration et oxydation biochimique de cyclane-diols-1,2. Helv Chim Acta 38:205–212TH. POSTERNAK ET AL: " Recherches dans la série des cyclitols XXIX. Synthèses du (+/-)-laminitol et du (-...
First page of articledoi:10.1107/S0108270186096051D. Tran QuiM. ChiadmiActa Crystallographica