| | 1 | Author
| Udo Kunze, Rolf Tittmann | Requires cookie* | | | Title
| Phosphinsubstituierte Chelatliganden, XXIII [1] Darstellung und NMR-Spektren von Alkyl-arylphosphinothioformamiden, R(Ph)PC(S)NHMe Phosphine-Substituted Chelate Ligands, XXIII [1] Synthesis and NMR Spectra of Alkyl-arylphosphinothioformamides, R(Ph)PC(S)NHMe  | | | | Abstract
| A series of alkyl-arylsubstituted N-methyl phosphinothioformamides, R(Ph)PC(S)NHMe (2 a—g), with varying bulkiness of the alkyl rest was synthesized from the racemic secondary phosphines la—g and methyl isothiocyanate. 'H and 13 C NMR spectra of 2a—g reveal signal sets of diastereotopic nuclei due to the asymmetry of the molecule. The chemical shift and coupling constants were confirmed by simulation in case of 2b, c. The vicinal 31 P— 13 C cou-plings of the menthyl and neomenthyl compounds 2f, g show an "anti-Karplus" behaviour CJ(gauche) > ? J(trans)) and allow the conformational assignment of the alicyclic group. The 31 P chemical shifts of 2a—d give a linear correlation with the cone angle of the alkyl substituents quoted from literature. | | | |
Reference
| (Z. Naturforsch. 42b, 77—83 [1987]; eingegangen am 8. August 1986) | | | |
Published
| 1987 | | | |
Keywords
| Alkyl-arylphosphinothioformamides, Menthyl and Neomenthyl Derivatives, NMR Spectra, Conformational Analysis, Substituent Influence | | | |
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| default:Reihe_B/42/ZNB-1987-42b-0077.pdf | | | | Identifier
| ZNB-1987-42b-0077 | | | | Volume
| 42 | |
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