Tetrahedron

Cyclic organophosphorus compounds—V: High resolution nuclear magnetic resonance spectra of some 5, 5-dialkyl-1, 3, 2-dioxaphosphorinanes and related …

KD Bartle, RS Edmundson, DW Jones

Index: Bartle,K.D. et al. Tetrahedron, 1967 , vol. 23, p. 1701 - 1711

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Citation Number: 35

Abstract

Proton chemical shifts, and 31P-1H coupling constants through sequences of 1, 2, 3, and 4 chemical bonds, are reported for the 5, 5-substituted-1, 3-2-dioxaphosphorinanes (I: X= O or S; R1= R2= Me or Et; R1= Me, R2= ClCH2; R3= alkyl, alkoxy, aryloxy, alkylamido, halogeno, H,). In some cases, the 4, 6-methylene hydrogen resonances have been analysed by means of an ABX approximation. Comparison of the 31P spectra of the esters (I: R1= R2= Me; X= ...