Estimation of the chemical shifts of olefinic protons using additive increments-II. The compilation of additive increments for 43 functional groups

U. E. Matter, C. Pascual, E. Pretsch, A. Pross, W. Simon, S. Sternhell

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304 Scopus citations

Abstract

Additive shielding parameters for olefinic protons were derived for 36 functional groups by means of a least squares procedure applied to 4298 chemical shifts. Additional shielding parameters for a further 7 functional groups were obtained by assuming simple additivity. A number of conspicuous exceptions to the calculated values are listed.

Original languageEnglish
Pages (from-to)691-697
Number of pages7
JournalTetrahedron
Volume25
Issue number3
DOIs
StatePublished - 1 Jan 1969
Externally publishedYes

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