𝔖 Bobbio Scriptorium
✦   LIBER   ✦

13C NMR Study of 3,9-di(alkylphenoxy) -2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecanes

✍ Scribed by V. Pätoprstý; Ľ. Malík; I. Goljer; M. Göghová; M. Karvaš; J. Durmis

Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
458 KB
Volume
23
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

13C NMR chemical shifts and uC-31P coupling constants of fourteen derivatives from 3,9-di(aIkylphenoxy)-2,4,S,lO-tetraoxa-3,9-diphosphaspiro[5.5]undecane and of eight derivatives of the 3,g-dioxo type are reported. All investigated compounds possess a chair conformation with the lone pair or the phosphoryl oxygen in the equatorial position. The allrylphenoxy groups are in a cis position with respect to the lone pair or the phosphoryl oxygen. Conformational changes about the aryl-0 bond can be monitored via P-0-GuC couplings and their angular dependence was found to be non-symmetric.

📜 SIMILAR VOLUMES

Synthesis and X-Ray Structural Studies o
Synthesis and X-Ray Structural Studies of ‘4,7,13-Trioxa-1,10-diaza-5,6-benzocyclopentadecane-2,9-dione’ ( = 5,6,9,10-Tetrahydro-2H, 8H-benzo[b][1,4,10]trioxa[7,13]diazacyclopentadecene-311(4H,12H)-dione) and ‘4,7,13,16-Tetraoxa-1,10-diaza-5,6-benzocyclooctadecane-2,9-dione’ ( = 5,6,8,9,12,13-Hexahydro-2H,11H-benzo[b][1,4,10,13]tetraoxa- [7,16]diazacyclooctadecene-3,14(4H, 15H)-dione)
✍ Przemyslaw Gluziński; Janusz Jurczak; Janusz W. Krajewski; Piotr Sałański; Tomas 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 German ⚖ 306 KB 👁 1 views

## Abstract The molecular structures of the title compounds 3 and 5 were investigated by NMR and X‐ray structural methods. The NMR results suggest two equivalent halves for both molecules. The X‐ray study shows an approximate mirror plane for 3 and an approximate twofold axis for a significant port

A 1H and 13C NMR study of 4,8,9,10-tetra
A 1H and 13C NMR study of 4,8,9,10-tetraaryl-1,3-diazatricyclo[3.3.1.13,7]decan-6-ones
✍ V. Vijayakumar; M. Sundaravadivelu; S. Perumal; A. Lycka 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 85 KB

## Abstract The ^1^H and ^13^C NMR spectra of 4,8,9,10‐tetraaryl‐1,3‐diazatricyclo[3.3.1.13, 7]decan‐6‐ones were measured at 400 and 500 and at 100 and 125 MHz, respectively. The chemical shifts were assigned unambiguously using one‐ and two‐dimensional (H,H‐COSY, C,H‐COSY, NOESY, ROESY and HMBC) N