Half-sandwich ruthenium(<scp>ii</scp>) complexes with tethered arene-phosphinite ligands: synthesis, structure and application in catalytic cross dehydrogenative coupling reactions of silanes and alcohols
作者:Rebeca González-Fernández、Pascale Crochet、Victorio Cadierno
DOI:10.1039/c9dt04421c
日期:——
[RuCl2η6:κ1(P)-C6H5(CH2)nOPR2}] (R = Ph, n = 1 (9a), 2 (9b), 3 (9c); R = iPr, n = 1 (10a), 2 (10b), 3 (10c)) from the corresponding phosphinite ligands R2PO(CH2)nPh (R = Ph, n = 1 (1a), 2 (1b), 3 (1c); R = iPr, n = 1 (2a), 2 (2b), 3 (2c)) is presented. Thus, in a first step, the treatment at room temperature of tetrahydrofuran solutions of dimers [RuCl(μ-Cl)(η6-arene)}2] (arene = p-cymene (3), benzene (4)) with
系留芳烃-钌(ii)配合物的制备[RuCl2 η6:κ1(P)-C6H5(CH2)nOPR2}](R = Ph,n = 1(9a),2(9b),3(9c) ; R = iPr,n = 1(10a),2(10b),3(10c))来自相应的次膦酸酯配体R2PO(CH2)nPh(R = Ph,n = 1(1a),2(1b),3 (1c); R = iPr,n = 1(2a),2(2b),3(2c))。因此,在第一步中,在室温下处理二聚体[RuCl(μ-Cl)(η6-芳烃)} 2](芳烃=对伞花烃(3),苯(4))的四氢呋喃溶液。 -2a-c导致相应单核衍生物[RuCl2(η6-p-cymene)R2PO(CH2)nPh}](5-6a-c)和[RuCl2(η6-苯)R2PO(CH2) )nPh}](7-8a-c),以66-99%的产率分离。随后将这些化合物的1,2-二氯乙烷溶液在120°C