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Macrobicyclic triphosphazides and tri-λ5-phosphazenes derived from PhC(CH2PPh2)3.: Two propeller-shaped diastereoisomers in the crystals

被引：9
作者：
Alajarin, Mateo
Lopez-Leonardo, Carmen
Berna, Jose
Steed, Jonathan W.
机构：
[1] Univ Murcia, Fac Quim, Dept Quim Organ, E-30100 Murcia, Spain
[2] Univ Durham, Dept Chem, Durham DH1 3LE, England
来源：
TETRAHEDRON | 2007年 / 63卷 / 09期
关键词：
triphosphazide; tri-lambda(5)-phosphazene; macrobicycle; cage-compound; propeller; tripod-tripod coupling;
D O I：
10.1016/j.tet.2006.12.027
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
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. (c) 2006 Elsevier Ltd. All rights reserved.
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页码：2078 / 2083
页数：6
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