ISSN:
0009-2940
Keywords:
Nonaphosphabrexane, 2,4,5,8,9-pentaalkyl
;
Tricyclo[4.3.0.03.7]nonaphosphane
;
b-Nonaphosphane(5)
;
Phosphanes, polycyclic
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Contributions to the Chemistry of Phosphorus, 2101.2). - Pentaorganyltricyclononaphosphanes with a Structure Analogous to Brexane, b-P9R5 (R = Me, Et, iPr)The reaction of RPCl2, P4, and magnesium provides two constitutionally isomeric pentaorganyltricyclononaphosphanes. Besides the isomer with a P9 skeleton analogous to that of noradamantane (a-P9R5), which was already identified, a further isomer of lower relative abundance (b-P9R5) has now been found. In the case of R = Et (2) it has been isolated as a pale yellow, oily liquid and, in the cases of R = Me (1) and iPr (3), has been highly enriched. According to their 31P{1H}-NMR spectra, 1 - 3 have a constitution analogous to that of the hydrocarbon brexane, thus being 2,4,5,8,9-pentaorganyltricyclo[4.3.0.03.7]nonaphosphanes. They are each formed as mixtures of several configurational isomers, which differ in their relative arrangements of the organyl groups.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19911240111
