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Synthesis of Symmetric and Nonsymmetric NiII Thiophosphinito PECSP (E = S, O) Pincer Complexes and Their Applications in Kumada Coupling under Mild Conditions
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2018-02-01 , DOI: 10.1002/ejic.201701442 Patrick Hasche 1 , Markus Joksch 1 , Georgia Vlachopoulou 1 , Hemlata Agarwala 1, 2 , Anke Spannenberg 1 , Torsten Beweries 1
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2018-02-01 , DOI: 10.1002/ejic.201701442 Patrick Hasche 1 , Markus Joksch 1 , Georgia Vlachopoulou 1 , Hemlata Agarwala 1, 2 , Anke Spannenberg 1 , Torsten Beweries 1
Affiliation
The reaction of 1,3‐dimercaptobenzene with iPr2PCl in the presence of the base NaH, furnishes the symmetric ligand [C6H4‐1,3‐(SPiPr2)2] (1a). The direct reaction of this ligand as well as of the literature‐known nonsymmetric ligand [C6H4‐1‐(SPiPr2)‐3‐(OPiPr2)] (1b) with NiCl2 affords the symmetric bis(thiophosphinito) PSCSP pincer complex [{C6H3‐2,6‐(SPiPr2)2}NiCl] (2a) as well as the phosphinito–thiophosphinito POCSP pincer complex [{C6H3‐2‐(SPiPr2)‐6‐(OPiPr2)}NiCl] (2b). Both complexes were fully characterised and their catalytic performance in Kumada coupling of aryl halides and p‐tolylmagnesium bromide under mild conditions was evaluated.
中文翻译:
对称和不对称NiII硫代膦酰基PECSP(E = S,O)钳形配合物的合成及其在温和条件下的Kumada偶联中的应用
1,3-二巯基苯的与反应我镨2的PCl在基座NaH存在下,配料对称配位体[C 6 H ^ 4 -1,3-(SP我镨2)2 ](1A)。该配体以及文献中已知的非对称配体[C 6 H 4 -1-(SP i Pr 2)-3-(OP i Pr 2)](1b)与NiCl 2的直接反应可得到对称的(硫代膦酰基)PSCSP钳形复合物[{C 6 H 3 -2,6-(SP iPr 2)2 } NiCl](2a)以及膦酰-硫代膦酰POCSP夹杂物[{C 6 H 3 -2-(SP i Pr 2)-6-(OP i Pr 2)} NiCl](2b) 。两种配合物均得到了充分表征,并评估了它们在温和条件下在芳基卤化物和对甲苯甲酸溴化物的Kumada偶联中的催化性能。
更新日期:2018-02-01
中文翻译:
对称和不对称NiII硫代膦酰基PECSP(E = S,O)钳形配合物的合成及其在温和条件下的Kumada偶联中的应用
1,3-二巯基苯的与反应我镨2的PCl在基座NaH存在下,配料对称配位体[C 6 H ^ 4 -1,3-(SP我镨2)2 ](1A)。该配体以及文献中已知的非对称配体[C 6 H 4 -1-(SP i Pr 2)-3-(OP i Pr 2)](1b)与NiCl 2的直接反应可得到对称的(硫代膦酰基)PSCSP钳形复合物[{C 6 H 3 -2,6-(SP iPr 2)2 } NiCl](2a)以及膦酰-硫代膦酰POCSP夹杂物[{C 6 H 3 -2-(SP i Pr 2)-6-(OP i Pr 2)} NiCl](2b) 。两种配合物均得到了充分表征,并评估了它们在温和条件下在芳基卤化物和对甲苯甲酸溴化物的Kumada偶联中的催化性能。