Tetrahedron

Aromatische phosphine mit substituenten zweiter ordnung—VII: Substituenten-und solvenseinflüsse auf die kernmagnetische nichtäquivalenz bei para-substituierten …

GP Schiemenz, G Stein

Index: Schiemenz,G.P.; Stein,G. Tetrahedron, 1970 , vol. 26, p. 2007 - 2026

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Citation Number: 22

Abstract

The NMR non-equivalence of the Me groups in para-substituted dimethylbenzamides depends on the solvent and the substituent: Rotation around the C N bond is increasingly hindered with growing polarity of the solvent (and even more by its ability to form H-bonds) and with increasing electron attracting properties of the substituent, the mesomeric effect being much more efficient than the inductive one. Chalcogenide and onium phosphorus, ...

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