Title of article
Macrobicyclic triphosphazides and tri-λ5-phosphazenes derived from PhC(CH2PPh2)3. Two propeller-shaped diastereoisomers in the crystals
Author/Authors
Mateo Alajarin، نويسنده , , Carmen L?pez-Leonardo، نويسنده , , José Bern?، نويسنده , , Jonathan W. Steed، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2007
Pages
6
From page
2078
To page
2083
Abstract
New macrobicyclic cage-compounds composed of two tripodal, propeller-shaped fragments linked by phosphazide and phosphazene units have been synthesized by reaction of PhC(CH2PPh2)3 with tris(m-azidobenzyl)amines. Two diastereoisomers of one of these cages have been characterized in the solid state by X-ray crystallography, one presenting two propellers with the same sense of twist P∗,P∗ whereas in the second one the helical sense of both propellers is the opposite, P∗,M∗. In contrast, only one species is apparent in CDCl3 solution.
Keywords
Tripod–tripod coupling , Triphosphazide , Tri-?5-phosphazene , Propeller , Cage-compound , Macrobicycle
Journal title
Tetrahedron
Serial Year
2007
Journal title
Tetrahedron
Record number
1090350
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