Hydrogen/Halogen Exchange of Phosphines for the Rapid Formation of Cyclopolyphosphines.
Hydrogen/Halogen Exchange of Phosphines for the Rapid Formation of Cyclopolyphosphines.
复制标题
膦的氢/卤素交换快速形成环多膦。
DOI:
10.1021/acs.inorgchem.1c02734
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发表时间:
2021
影响因子:
4.6
通讯作者:
Barrett AN
中科院分区:
文献类型:
--
作者:
Barrett AN
The hydrogen/halogen exchange of phosphines has been exploited to establish a truly useable substrate scope and straightforward methodology for the formation of cyclopolyphosphines. Starting from a single dichlorophosphine, a sacrificial proton “donor phosphine” makes the rapid, mild synthesis of cyclopolyphosphines possible: reactions are complete within 10 min at room temperature. Novel (aryl)cyclopentaphosphines (ArP)5have been formed in good conversion, with the crystal structures presented. The use of catalytic quantities of iron(III) acetylacetonate provides significant improvements in conversion in the context of diphosphine (Ar2P)2and alkyl-substituted cyclotetra- or cyclopentaphosphine ((AlkylP)n, wheren= 4 or 5) formation. Both iron-free and iron-mediated reactions show high levels of selectivity for one specific ring size. Finally, investigations into the reactivity of Fe(acac)3suggest that the iron species is acting as a sink for the hydrochloric acid byproduct of the reaction.
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影响因子:
1.8
作者:
D. M. Yufanyi;Toni Grell;M. Sárosi;P. Lönnecke;E. Hey‐Hawkins
通讯作者:
E. Hey‐Hawkins
影响因子:
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影响因子:
4.9
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通讯作者:
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影响因子:
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通讯作者:
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影响因子:
2.3
作者:
D. M. Yufanyi;Toni Grell;E. Hey‐Hawkins
通讯作者:
E. Hey‐Hawkins