Evaluation of Fe and Ru Pincer-Type Complexes as Catalysts for the Racemization of Secondary Benzylic Alcohols

Bornschein Christoph; Gustafson Karl P. J.; Verho Oscar; Beller Matthias; Baeckvall Jan-E.

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Evaluation of Fe and Ru Pincer-Type Complexes as Catalysts for the Racemization of Secondary Benzylic Alcohols

机译：铁和钌钳型配合物作为仲苯甲醇消旋化催化剂的评价

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Fe and Ru pincer-type catalysts are used for the racemization of benzylic alcohols. Racemization with the Fe catalyst was achieved within 30 minutes under mild reaction conditions, with a catalyst loading as low as 2 mol %. This reaction constitutes the first example of an iron-catalyzed racemization of an alcohol. The efficiency for racemization of the Fe catalyst and its Ru analogue was evaluated for a wide range of sec-benzylic alcohols. The commercially available Ru complex proved to be highly robust and even tolerated the presence of water in the reaction mixture.

机译：Fe和Ru夹钳型催化剂用于苯甲醇的外消旋化。在温和的反应条件下，在30分钟内用Fe催化剂进行外消旋，催化剂负载量低至2 mol％。该反应构成铁催化的醇外消旋化的第一个例子。对于多种仲苄醇，评估了Fe催化剂及其Ru类似物的外消旋效率。市场上可买到的Ru配合物被证明是高度坚固的，甚至可以耐受反应混合物中水的存在。

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《Chemistry: A European journal》 |2016年第33期|共4页
作者
Bornschein Christoph; Gustafson Karl P. J.; Verho Oscar; Beller Matthias; Baeckvall Jan-E.;
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正文语种 eng
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关键词
iron; pincer ligands; racemization; ruthenium; secondary alcohols;

机译：铁;钳子配体;消旋;钌;仲醇;

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1. Evaluation of Fe and Ru Pincer-Type Complexes as Catalysts for the Racemization of Secondary Benzylic Alcohols [J] . Bornschein Christoph, Gustafson Karl P. J., Verho Oscar, Chemistry: A European journal . 2016,第33期

机译：铁和钌钳型配合物作为仲苯甲醇消旋化催化剂的评价
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4. Enantioselectivity and Thermostability of a Novel Hyperhermotolerant Lipase from Geobacillus Thermodenitrificans nr68(Lip.nr-68)on Secondary Racemic Alcohols Acetylation [C] . D Ibrahim International Conference on Global Sustainability and Chemical Engineering . 2018

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5. C2-Symmetric Bis(phosphines) and Their Metal Complexes. Synthesis, Materials Application, and Screening Racemic Catalysts. [D] . Sanderson, Matthew David. 2015

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6. Catalytic Enantioselective Cross-Couplings of Secondary Alkyl Electrophiles with Secondary Alkylmetal Nucleophiles: Negishi Reactions of Racemic Benzylic Bromides with Achiral Alkylzinc Reagents [O] . Jörg T. Binder, Christopher J. Cordier, Gregory C. Fu -1

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7. Catalytic racemization of secondary alcohols with new (arene)Ru(II)-NHC and (arene)Ru(II)-NHC-tertiary phosphine complexes [O] . Natália Marozsán, Henrietta Horváth, Éva Kováts, 2018

机译：用新（芳烃）Ru（II）-NHC和（芳烃）Ru（II）-NHC-叔膦络合物催化外醇的催化外消除

Evaluation of Fe and Ru Pincer-Type Complexes as Catalysts for the Racemization of Secondary Benzylic Alcohols

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