Efficient Iridium Catalysts for Base-Free Hydrogenation of Levulinic Acid

Wang S.; Huang H.; Dorcet V.; Roisnel T.; Bruneau C.; Fischmeister C.

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Efficient Iridium Catalysts for Base-Free Hydrogenation of Levulinic Acid

机译：高效铱催化剂的左素酸的无碱氢化

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The synthesis and characterization of new dicationic ruthenium and iridium complexes bearing a dipyridylamine ligand (dpa) are reported. These complexes display an unusual zwitterionic molecular structure in the solid state. The iridium complex [Cp*Ir(dpa)(OSO3)] (Id) was found to be very efficient in base-free hydrogenation of levulinic acid into gamma-valerolactone (GVL). TONs as high as 174000 in hydrogenation have been obtained. We have demonstrated that reduction of LA into GVL by transfer hydrogenation with formic acid is in fact operating by hydrogenation fed by preliminary formic acid dehydrogenation. A mechanism based on the characterization and isolation of Ir-H complexes is proposed.

机译：据报道了携带双吡啶胺配体（DPA）的新致密钌和铱络合物的合成和表征。这些配合物在固态中显示出不寻常的两性离子结构。发现铱络合物[CP * IR（DPA）（OSO 3）]（ID）在无乙酰丙酸的基本无氢化成γ-戊内酯（GV1）中非常有效。已经获得了高达174000的氢化吨。我们已经证明，通过用甲酸转移氢化通过氢化通过初步甲酸脱氢来运行La进入GV1。提出了一种基于IR-H复合物的表征和分离的机制。

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《Organometallics》 |2017年第16期|共11页
作者
Wang S.; Huang H.; Dorcet V.; Roisnel T.; Bruneau C.; Fischmeister C.;
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Univ Rennes 1 Ctr Catalysis &

Green Chem CNRS Inst Sci Chim Rennes Organometall Mat &

Catalysis UMR 6226 Campus Beaulieu F-35042 Rennes France;

Univ Rennes 1 Ctr Catalysis &

Green Chem CNRS Inst Sci Chim Rennes Organometall Mat &

Catalysis UMR 6226 Campus Beaulieu F-35042 Rennes France;

Univ Rennes 1 CNRS Inst Sci Chim Rennes UMR 6226 Ctr Diffractometrie 10 F-35042 Rennes France;

Univ Rennes 1 CNRS Inst Sci Chim Rennes UMR 6226 Ctr Diffractometrie 10 F-35042 Rennes France;

Univ Rennes 1 Ctr Catalysis &

Green Chem CNRS Inst Sci Chim Rennes Organometall Mat &

Catalysis UMR 6226 Campus Beaulieu F-35042 Rennes France;

Univ Rennes 1 Ctr Catalysis &

Green Chem CNRS Inst Sci Chim Rennes Organometall Mat &

Catalysis UMR 6226 Campus Beaulieu F-35042 Rennes France;

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专利

1. Efficient Iridium Catalysts for Base-Free Hydrogenation of Levulinic Acid [J] . Wang S., Huang H., Dorcet V., Organometallics . 2017,第16期

机译：高效铱催化剂的左素酸的无碱氢化
2. Highly Efficient Iridium Catalyst for Asymmetric Transfer Hydrogenation of Aromatic Ketones under Base-Free Conditions [J] . Zhen-Rong Dong, Yan-Yun Li, Jian-Shan Chen, Organic letters . 2005,第6期

机译：无碱条件下高效芳烃铱铱不对称转移加氢催化剂
3. Base-Free Dehydrogenation of Aqueous and Neat Formic Acid with Iridium(III) Cp*(dipyridylamine) Catalysts [J] . Wang Shengdong, Huang Haiyun, Roisnel Thierry, ChemSusChem . 2019,第1期

机译：用铱（III）CP *（二吡啶胺）催化剂的含水和纯甲酸的无基质脱氢
4. HYDROGEN EVOLUTION BY DEHYDROGENATION OF FORMIC ACID USING IRIDIUM CATALYSTS WITH AZOLE LIGANDS [C] . Yuichiro Himeda, Yuichi Manaka, Wan-Hui Wang American Chemical Society National Meeting Exhibition . 2014

机译：用唑烷烃用唑类丙酸脱氢脱氢氢化
5. Kinetics of Methyl Ketone and Levulinic Acid Oxidative Scission over Supported Vanadium Oxide Catalysts [D] . ?Zhu, Ran 2020

机译：负载钒氧化物催化剂的甲基酮和乙酰酸氧化释放的动力学
6. Efficient Vapor‐Phase Selective Hydrogenolysis of Bio‐Levulinic Acid to γ‐Valerolactone Using Cu Supported on Hydrotalcite Catalysts [O] . Harisekhar Mitta, Prem Kumar Seelam, K. V. Raghava Chary, 2018

机译：使用水滑石催化剂上负载的铜有效地将生物白蛋白酸汽相选择性水解为γ-戊内酯
7. Ruthenium and Iridium Dipyridylamine Catalysts for the Efficient Synthesis of γ-Valerolactone by Transfer Hydrogenation of Levulinic Acid [O] . Wang, Shengdong, Dorcet, Vincent, Roisnel, Thierry, 2017

机译：钌和铱二吡啶基胺催化转移蛋白水解加氢高效合成γ-戊内酯的催化剂

Efficient Iridium Catalysts for Base-Free Hydrogenation of Levulinic Acid

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