A new template for the synthesis of triphosphorus macrocycles
A new template for the synthesis of triphosphorus macrocycles
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合成三磷大环化合物的新模板
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
P. G. Edwards
中科院分区：
文献类型：
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作者：
A. J. Price;P. G. Edwards
报道了一种新的三磷大环模板合成方法。
基于分子内氢磷化的基础上开发
烯丙基膦配位到
(η5-环戊二烯)铁(II)阳离子；
得到的三次大环1，5，9-三磷酸环十二烷很容易
与乙烯烷基化得到
(η3-1，5，9-[12]ane P3Et3)Fe(η5
-Cp)+，其又被释放为自由配体
立体专一地作为合成异构体；相关反应
与苯基(烯丙基)膦直接通向三苯基大环
(1，5，9-[12]aneP3Ph3)也被解放了
立体定向的。
A new template synthesis of triphosphorus macrocycles has been
developed based upon the intramolecular hydrophosphination of
allylphosphine coordinated to the
(η5-cyclopentadienyl)iron(II) cation; the
resulting tri-secondary macrocycle 1,5,9-triphosphacyclododecane is readily
alkylated with ethene to give
(η3-1,5,9-[12]aneP3Et3)Fe(η5
-Cp)+ which is in turn liberated as the free ligand
stereospecifically as the syn–syn isomer; related reactions
with phenyl(allyl)phosphine lead directly to the triphenyl macrocycle
(1,5,9-[12]aneP3Ph3) which is also liberated
stereospecifically.