97994-11-1Relevant academic research and scientific papers
One pot synthesis of 3,9-bis-(2,4-di-tert-butyl phenoxy)-2,4,8,10-tetraoxa- 3,9-diphospha-spiro[5.5]undecane, their chalcogenides and metal complexes
Rani, Manju,Shukla, Davender Kumar,Khan, Arif Ali
, p. 4556 - 4558 (2013/07/25)
A simple method for the synthesis of 3,9-di[2,4-di-tert-butyl phenoxy]-2,4,8,10-tetraoxa-3,9-diphospha-spiro[5.5]undecane and its chalcogenides and metal complex are reported.
13C NMR Study of 3,9-Di(alkylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiroundecanes
Paatoprsty, V.,Malik, L.,Goljer, I.,Goeghova, M.,Karvas, M.,Durmis, J.
, p. 122 - 126 (2007/10/02)
13C NMR chemical shifts and 13C-31P coupling constants of fourteen derivatives from 3,9-di(alkylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiroundecane and of eight derivatives of the 3.9-dioxo type are reported.All investigated compounds possess a chair conformation with the lone pair or the phosphoryl oxygen in the equatorial position.The alkylphenoxy groups are in a cis position with respect to the lone pair or the phosphoryl oxygen.Conformational changes about the aryl-O bond can be minitored via 31P-O-C-13C couplings and their angular dependence was found to be non-symmetric.
