5465-08-7Relevant articles and documents
Carbon-13 NMR Spectra of 1,3-Dioxolanes. I-New Parameters for cis- and trans-4-Methyl Groups in 2,4-Disubstituted Derivatives
Espinosa, Antonio,Gallo, Miguel A.,Campos, Joaquin,Entrena, Antonio,Camacho, Encarnacion
, p. 754 - 757 (1986)
The 13C NMR spectra of 24 1,3-dioxolane derivatives are reported in an attempt to propose parameters for the C-2, C-4 and C-5 shifts from the 2-Me and 4-Me substituents, based on the ring stereochemistry.These parameters are obtained from simultaneuos equations, and clearly agree with those calculated by the use of pattern molecules.The calculated parameter for the C-4 shift due to a 2-Me group differs notably from that proposed by other workers.KEY WORDS 1,3-dioxolane derivatives 13C NMR Shift parameters
Novel pesticides, preparation and use
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, (2008/06/13)
The specification describes and claims methods of controlling acarine pests by application of a compound of Formula (I), methods of controlling arthropod pests by application of a compound of Formula (IA), compounds of Formula (IA) per se, pesticidal compositions comprising a compound of Formula (IA), and processes for preparing a compound of Formula (IA).
Derivatives of C-6 functionalized 4-heteroalkanals. IV. Cyclic modifications in 6-hydroxy-4-oxa-alkanals
Espinosa, Antonio,Gallo, Miguel A.,Campos, Joaquin
, p. 269 - 273 (2007/10/02)
The synthesis of 6-hydroxy-4-oxa-hexanal, 6-hydroxy-4-oxa-heptanal and some derivatives of them are described.It is shown by combined spectroscopic and kinetic methods how these hydroxyaldehydes do not respond to equilibrium processes characteristic of simple 6-hydroxy-aldehydes, since a slow isomerization to the respective 2-(2-hydroxyethyl)-1,3-dioxolanes are observed on standing in CDCl3 solutions, whilst an equilibrium between the hydroxyaldehydes and their corresponding cyclohemiacetal forms are observed in dioxane-water 3/1.