New (old) hydroxo complexes of platinum(II) as catalysts for the Baeyer-Villiger oxidation of ketones with hydrogen peroxide
New (old) hydroxo complexes of platinum(II) as catalysts for the Baeyer-Villiger oxidation of ketones with hydrogen peroxide
复制标题
新（旧）铂（II）羟基配合物作为酮与过氧化氢拜耳-维利格氧化的催化剂
DOI：
10.1016/s1381-1169(96)00246-4
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发表时间：
1997
影响因子：
--
通讯作者：
F. Pinna
中科院分区：
文献类型：
--
作者：
G. Strukul;Alessandra Varagnolo;F. Pinna
以手性双膦（P货车）配合物（P货车，手性双膦）为催化剂，可以实现环酮的Baeyer-Villiger对映选择性氧化反应.对活化过程的分析旨在鉴定活性物种，导致分离出[（P P）Pt（μ-OH）]2+2（P P，各种二膦）型络合物。报道了一些新化合物的合成，并用红外光谱、核磁共振谱和电导率数据对其进行了表征。结果表明，这些配合物对环酮的Baeyer-Villiger氧化反应具有催化活性。在与包括过氧化氢在内的各种酸的反应中利用了OH配体的碱性。
Enantioselective Baeyer-Villiger oxidation of cyclic ketones with hydrogen can be obtained using (PP∗)Pt(2-van) complexes (PP∗, chiral diphosphine; 2-van, bis-anion of 2-vanillin) as catalyst precursors. An analysis of the activation procedure aimed to the identification of the reactive species leads to the isolation of complexes of the type [(PP)Pt(μ-OH)]2+2(PP, various diphosphines). The synthesis of some new species is reported together with their characterization with IR and NMR spectroscopy and conductivity data. It is found that these complexes are catalytically active in the (enantioselective) Baeyer-Villiger oxidation of cyclic ketones with hydrogen peroxide. The basic nature of the OH ligands is exploited in the reaction with a variety of acids including hydrogen peroxide.