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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Synthesis and auration of primary and di-primary heteroaryl-phosphines
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Synthesis and auration of primary and di-primary heteroaryl-phosphines

机译：伯和二伯杂芳基膦的合成和酸化

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Convenient high-yield syntheses of the primary and di-primary heteroaryl-phosphines R-PH2 and H2P-R'PH2 (with R = 2-thienyl, 2-furyl, and R' = 2,5-thiophenediyl, 2,5-furandiyl, respectively) are presented. The products and a set of precursor molecules have been characterized by analytical and spectral data, and the crystal structures of selected molecules have been determined: 2-C4H3O-PCl2, 2,5-(Cl2P)(2)C4H2O, 2,5-[(Et2N)(2)P](2)C4H2E(with E = O, S). In the crystals, the two molecules with -PCl2 substituents adopt trans conformations, while the other two have the -P(NEt2)(2) groups rotated into a twist conformation. The reaction of the thienyl compounds with tris [(tert-phosphine)gold]oxonium tetrafluoroborates gave almost quantitative yields of the tri- and hexanuclear gold complexes, respectively: {2-C4H3S-P[Au(PR3)](3)}+BF4- and [2,5-{[(R3P)Au](3)P}(2)C4H2S](2+)(BF4-)(2), (R = Bu-t, Ph). The structures of the compounds with R3P = (Bu3P)-Bu-t ligands have been determined. In both cases the [2-C4H3/2S-P] units cap triangles of gold atoms in an array that can be described as three [Au(PR3)](+) cations bridged by a phosphido dianion (RP)(2-).
机译：伯杂芳基膦和二伯杂芳基膦R-PH2和H2P-R'PH2的便捷高产率合成（R = 2-噻吩基，2-呋喃基，R'= 2,5-噻吩二基，2,5-分别给出了呋喃二基）。已通过分析和光谱数据对产物和一组前体分子进行了表征，并确定了所选分子的晶体结构：2-C4H3O-PCl2，2,5-（Cl2P）（2）C4H2O，2,5- [（Et2N）（2）P]（2）C4H2E（with E = O，S）。在晶体中，两个带有-PCl2取代基的分子采用反式构象，而另外两个具有-P（NEt2）（2）基团旋转成扭曲构象。噻吩化合物与三[（叔膦）金]四氟硼酸ox的反应分别给出几乎定量的三核和六核金配合物：{2-C4H3S-P [Au（PR3）]（3）} + BF4-和[2,5-{[（R3P）Au]（3）P}（2）C4H2S]（2 +）（BF4-）（2），（R = Bu-t，Ph）。已确定具有R3P =（Bu3P）-Bu-t配体的化合物的结构。在这两种情况下，[2-C4H3 / 2S-P]单元都会覆盖阵列中金原子的三角形，该三角形可描述为由磷阴离子（RP）（2-）桥接的三个[Au（PR3）]（+）阳离子。 。

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