✦ LIBER ✦

13C, 15N and 31P NMR Investigation of P-Substituted N-2,4,6-Tris(tert-butyl)- phenyliminophosphines

✍ Scribed by A. B. Rozhenko; M. I. Povolotskii; V. V. Polovinko

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 507 KB
Volume: 34
Category: Article
ISSN: 0749-1581
DOI: 10.1002/(sici)1097-458x(199604)34:4<269::aid-omr852>3.0.co;2-2

No coin nor oath required. For personal study only.

✦ Synopsis

A large series of (Qand (a-iminophosphines, Mes*-N=P-X [X = NR,, OR, Alk, Ar, SR, PR,, Hal; Mes* = 2,4,6-tris(tert-butyI)phenyl], was investigated by 13C, I5N and 31P NMR spectroscopy. The 13C NMR chemical shifts of methyl groups of the o-tert-butyl substituents, and also the carbon-phosphorus coupling of the meta-and para-carbons in the aromatic moiety, were shown to be possible criteria for the assignment of the Eor 2-configuration of the iminophosphine. Basic rules are enumerated for the determination of configuration in the series considered. The variation of aromatic I3C nuclei shielding is considered to be electrostatic (n-inductive) in nature.

📜 SIMILAR VOLUMES

Multinuclear (1H, 13C, 15N, 19F, 31P) on

Multinuclear (1H, 13C, 15N, 19F, 31P) one- and two-dimensional magnetic resonance study of tert-butylamino-tert-butyl-fluorophosphane, tert-butylimino-tert-butylphosphane and of its dimer formed by [1 + 2] cycloaddition

✍ Bernd Wrackmeyer; Christian Köhler 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 409 KB

## Abstract Multinuclear magnetic resonance studies (^1^H, ^13^C, ^15^N, ^31^P) of three phosphorus–nitrogen compounds [__tert__‐butylamino‐__tert__‐butylfluorophosphane (1), __tert__‐butylimino‐__tert__‐butylphosphane (2) and its dimer (3)], in which numerous one‐ and two‐dimensional NMR experimen

A 1H, 13C, 31P and 15N NMR study of (pyr

A 1H, 13C, 31P and 15N NMR study of (pyrrolidine-2,2-diyl)bisphosphonic acid, tetraalkyl(pyrrolidine-2,2-diyl)bisphosphonates and acyclic tetraethyl bisphosphonates

✍ Gilles Olive; Marcel H. P. van Genderen 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 49 KB 👁 1 views

Investigation of Benzimidazoles. 5—trans

Investigation of Benzimidazoles. 5—transmission of the substituent effects in 2-substituted 5(6)-nitrobenzimidazoles studied by 1H, 13C and 15N NMR spectroscopy

✍ V. A. Lopyrev; L. I. Larina; T. I. Vakul'skaya; M. F. Larin; E. F. Shibanova; I. 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 360 KB

The iniluence of substituents on the 'H, "C and 15N NMR chemical shifts of 2-substituted 5(6)nitrobenzimidazoles and their analogues labelled with 15N in the nitro group was investigated. It was found that the substituent effects are transmitted to the carbon and hydrogen nuclei in positions 4-7 mai