Phosphorus cryptand

Miscellaneous Methods of Preparing Phosphines. - The synthesis and properties of phosphorus-containing cryptand ligands has been reviewed. The basic principles for the synthesis of functionalised phosphorus-containing heterocyclic systems have been summarised, relating to the chemistry of phosphabicyclohexanes, dihydrophosphinines, phosphabicyclooctadienes, and phosphabicyclooctenes °. Ethylene acetals (108) of the 9-oxa-2-phosphabicyclo[4.4.0]-5-one system have been prepared. Methods for the... 

The next two articles cover the chemistry of phosphorus containing macrocycles. The phosphorus containing cahxarenes have attracted much attention in recent years due to their various functions such as metal cations binding, catalysis, molecular recogination, and bioactivity. Likewise, other phosphorus-containing macrocycles, cryptands, and dendrimers find various uses in analytical chemistry and biochemistry. 

N)2P(NHCH2CH20CH20Me)=N(CH2)20CH20Me (N=nucleotide), has been prepared. Cryptands have been attached to phosphorus based macrocycles via construction of phosphazene linking substituents. ... 

Phosphorus-containing macrobicyclic compounds, however, have been investigated much less. The P-containing bimacrocycle and cryptand ligands are very... 

The Mannich-type condensation with the participation of two bifunctional reagents, namelyl,3-bis(mesitylphosphino)propane and m-xylylenediamine, led to the first representative of unique P,N-containing cryptand 219 (Scheme 12.77) [207]. The cryptand 219 was formed stereoselectively as a single RRRR/SSSS diastereomer. The lone electron pairs of the phosphorus atoms have axial... 

A multi-step one-pot reaction of spatially divided bisphenols with PCI3 lead to the phosphorus containing inJn-225, in,out-226 and 6>wf,owf-cryptand 227 (Scheme 12.80) [210, 211]. In spite of relatively low yields (not exceeding 7%) cryptands 225-227 in,in- meta and para, in, out -meta and para, out,out -meta and para) were isolated in pure state and their structures were established in solid state and solutions [210, 211]. Increasing the bisphenol curvature from the para- to the meta-ctnivdil phenylene unit leads to a dramatic change in the P-P distances... 

Caminade A-M, Majoral JP (1994) Synthesis of phosphorus-containing macrocycles and cryptands. Chem Rev 94 1183-1213... 

Bauer I, Habicher WD, Antipin IS et al (2004) Phosphorus macrocycles and cryptands. Russ Chem Bull 53 1402-1416... 

Mitjaville J, Caminade A-M, Mathieu R et al (1994) New synthetic strategies for phosphorus-containing cryptands and the first phosphorus spherand type compound. J Am Chem Soc 116 5007-5008... 

Over D, Lande A, Zeng X (2009) Replacement of a nitrogen by a phosphorus donor in biomimetic copper complexes a surprising and infmmative case study with calix[6]arene-based cryptands. htorg Chem 48 4317-4330... 

Some of the chapters of this book are more focused on the synthetic developments in phosphorus containing materials. This is the case of Chap. 2, which reviews the aspects concerning phosphine acetylenic macrocycles and cages, and Chap. 12, which deals with the important field of P-based cryptands, cyclophanes, and corands. Chapter 4 addresses the potential applications of metal complexes containing anionic phosphoms chains for the synthesis of metal phosphides, whereas the synthesis of P-compounds via the metal catalysed addition of P-H bonds to unsaturated organic molecules is thoroughly reviewed in Chap. 8. 

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