89975-71-3Relevant articles and documents
Carbon-13 NMR Spectra of 1,3-Dioxolanes. II - Determination of α, β and γ Parameters for 2- and 4-Methyl Groups in Stereoisomeric Derivatives by the Pattern Molecule Method
Espinosa, Antonio,Gallo, Miguel A.,Campos, Joaquin,Enterna, Antonio,Camacho, Encarnacion
, p. 108 - 110 (2007/10/02)
On the basis of the stereochemistry of the 1,3-dioxolane ring, the molecular pattern method allows the establishment of α, β and γ parameters for the 2-Me and 4-Me substituents.Values of α, β and γ additive parameters for the syn and anti 4-Me group in 2,2,4-trisubstituted-1,3-dioxolanes are proposed.The average values of the α, β and γ effects for the 2-Me and 4-Me groups obtained by the molecular pattern method are consistent with those reported from a multiple linear regression analysis.KEY WORDS 1,3-Dioxolane derivatives 13C NMR shift parameters Pattern molecule method
