65080-66-2Relevant academic research and scientific papers
3-hydroxymethylcycloalkanols and process for producing them
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, (2008/06/13)
The present invention relates to a 3-hydroxymethylcycloalkanol of the following formula (1), and a process for production of a 3-hydroxymethylcycloalkanol of the formula (1) by reduction of 3-formylcycloalkanone or 3-formylcycloalkenone. In accordance wit
Alicyclic polyamines and process for the preparation thereof
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, (2008/06/13)
An alicyclic polyamine of the formula (1) STR1 wherein Y1 represents a saturated aliphatic hydrocarbon group and R1 through R4 are the same or different and each represents hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, or an aralkyl gr
The Vinylogous Tricarbonyl Chromophore. Violerythrine End Groups and Related Six-Membered Ring Compounds. Their Synthesis, Conformation, and Investigation by Photoelectron, UV, and NMR Spectroscopy and by Crystal Structure Analysis
Martin, Hans-Dieter,Kummer, Matthias,Martin, Georg,Bartsch, Juergen,Brueck, Dieter,et al.
, p. 1133 - 1150 (2007/10/02)
The synthesis of five- and six-membered rings 3a, 4, 5b, 5c, and 17a, containing the structural moiety 3-pentene-1,2,5-trione, is described.The chromophoric properties of these vinylogous tricarbonyls together with related compounds are investigated.The conformation in solution, particularly the torsion angle ring/sidechain, can be derived from measurements of 3JCH coupling constants, NOE difference spectra, and force-field calculations.X-ray structure analyses of 11a, 17a, 18a, and 35 afford geometries in the solid state.Ionization energies are determined by means of photoelectron spectroscopy.The theoretical calculations and interpretation of absorption spectra and colour are carried out using the models CNDO/S-CI and HAM/3.
Zur Photospaltung konjugierter γ,δ-Epoxyenone. UV.-Bestrahlung von 3-(1',2'-Epoxy-2'-methyl-prop-1'-yl)-5,5-dimethyl-2-cyclohexen-1-on
Weck, Guy de,Wolf, Hans Richard
, p. 224 - 234 (2007/10/02)
On 1?,?*-excitation (λ=254 nm) 9 undergoes cleavage of the C(γ),C(δ)-bond yielding 17 and a, which gives 18 by photofragmentation.In presence of maleinic ester the photolysis of 9 yields 20, in the presence of methanol 21 and 22 are
