Low-Valent Chemistry: An Alternative Approach to Phosphorus-Containing Oligomers
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https://figshare.com/articles/dataset/Low_Valent_Chemistry_An_Alternative_Approach_to_Phosphorus_Containing_Oligomers/2225509
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资源简介：
A convenient
preparative approach to low-valent phosphorus-rich oligomers is presented.
Ligand substitution reactions involving anionic diphosphine ligands
of the form [(PR2)2N]− and
[(PPh2)2C5H3]− and a triphosphenium bromide PI precursor result in the
formation of phosphorus(I)-containing heterocycles, several of which
are of types that have never been prepared before. The methodology
described also allows for the preparation of the known heterocycle cyclo-[P(PPh2)N(PPh2)]2 in better yields and purity than the synthetic approach reported
previously. Preliminary reactivity studies demonstrate the viability
of such zwitterionic oligomers as multidentate ligands for transition
metals.
创建时间：
2014-12-15
