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Ligand-Free Suzuki-Miyaura Coupling Using Ruthenium(0) Nanoparticles and a Continuously Irradiating Microwave System

8 hours 4 min ago
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC01166K, PaperToshiki Akiyama, Takahisa Taniguchi, Nozomi Saito, Ryohei Doi, Tetsuo Honma, Yusuke Tamenori, Yuuta Ohki, Naoyuki Takahashi, Hiromichi Fujioka, Yoshihiro Sato, Mitsuhiro Arisawa
We developed a conceptually and methodologically novel ruthenium(0) nanoparticle catalyst, sulfur-modified gold-supported ruthenium nanoparticles (SARu). SARu is easily prepared through a three-step procedure involving simultaneous in situ metal nanoparticle and...
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Reductive Amination/Cyclization of Levulinic Acid to Pyrrolidones versus Pyrrolidines by Switching the Catalyst from AlCl3 to RuCl3 under Mild Conditions

8 hours 4 min ago
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC00999B, CommunicationCailing Wu, Xiaoying Luo, Hongye Zhang, Xinwei Liu, Guipeng Ji, Zhenghui Liu, Zhimin Liu
Herein the reductive amination/cyclization of levulinic acid using phenylsilane was presented to selectively produce pyrrolidones versus pyrrolidines under mild conditions by switching the catalyst from AlCl3 to RuCl3. Using AlCl3...
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Synthesis of Isoquinolones via Rh-Catalyzed C-H Activation of Substituted Benzamides Using Air as the Sole Oxidant in Water.

Fri, 05/26/2017 - 10:32
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC01221G, CommunicationNitinkumar Satyadev Upadhyay, Vijaykumar Haridas Thorat, Ryota Sato, Pratheepkumar Annamalai , Shih-Ching Chuang, Chien Hong Cheng
Most of the metal-catalyzed C-H activation/annulation reaction were carried out in organic solvent using expensive oxidant such as Cu(II) and Ag(I) salts. Here, we reported a new approach for highly...
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One-pot synthesis of 2-hydroxymethyl-5-methylpyrazine from renewable 1,3-dihydroxyacetone

Fri, 05/26/2017 - 04:28
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC00578D, CommunicationLei Song, Mingyuan Zheng, Jifeng Pang, Joby Sebastian, Wentao Wang, Minjie Qu, Jian Zhao, Xinhong Wang, Tao Zhang
An efficient and green method for the synthesis of 2-hydroxymethyl-5-methylpyrazine was achieved from biomass derived 1,3-dihydroxyacetone and diammonium phosphate via one-pot reaction. The product yield was as high as 72%...
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Iridium(III) Homo- and Heterogeneous Catalysed Hydrogen Borrowing C-N Bond Formation

Fri, 05/26/2017 - 04:28
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC01007A, PaperChin Min Wong, Roy Thomas McBurney, Samantha Carys Binding, Matthew B Peterson, Vinicius Romero Goncales, John Justin Gooding, Barbara A Messerle
Pentamethylcyclodienyl iridium(III) complexes of bidentate carbene-triazole ligands were found to be excellent homogeneous catalysts for the hydrogen borrowing mediated coupling of alcohols with amines. The reactions are highly efficient, able...
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Low Temperature Aqueous Phase Hydrogenation of The Light Oxygenate Fraction of Bio-oil over Supported Ruthenium Catalysts

Wed, 05/24/2017 - 05:07
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC00367F, PaperHakon Bergem, Run Xu, Robert Clinton Brown, George Huber
The low temperature hydrogenation of light oxygenates in the aqueous fraction of bio-oil (AFBO) was studied using both model compounds and a real bio-oil fraction with Ru/TiO2 and Ru/C catalysts...
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Bronsted acidic ionic liquid-catalyzed tandem reaction: an efficient approach towards regioselective synthesis of pyrano[3,2-c]coumarins under solvent-free conditions bearing lower E-factors

Tue, 05/23/2017 - 04:58
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC01158J, PaperAdinath Majee, Sachinta Mahato, Sougata Santra, Rana Chatterjee, Grigory V Zyryanov, Alakananda Hajra
1-Butane sulfonic acid-3-methylimidazolium tosylate, [BSMIM]OTs is found to be a remarkable catalyst for the tandem cyclization of 4-hydroxycoumarin with chalcones for the syntheses of pyrano[3,2-c]coumarins under solvent-free conditions. The developed...
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A solid acetylene reagent with enhanced reactivity: fluoride-mediated functionalization of alcohols and phenols

Mon, 05/22/2017 - 11:38

Green Chem., 2017, Advance Article
DOI: 10.1039/C7GC00724H, PaperGeorg Werner, Konstantin S. Rodygin, Anton A. Kostin, Evgeniy G. Gordeev, Alexey S. Kashin, Valentine P. Ananikov
The direct vinylation of an OH group in alcohols and phenols was carried out utilizing an easy-to-use CaC2/KF solid acetylene reagent.
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Correction: Core-substituted naphthalenediimides anchored on BiVO4 for visible light-driven water splitting

Mon, 05/22/2017 - 11:38
Green Chem., 2017, Advance Article
DOI: 10.1039/C7GC90056B, Correction Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Simelys Hernandez, Carminna Ottone, Stefano Proto, Kristine Rodulfo Tolod, Miriam Diaz de los Bernardos, Albert Sole-Daura, Jorge J. Carbo, Cyril Godard, Sergio Castillon, Nunzio Russo, Guido Saracco, Carmen Claver
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Aqueous phase homogeneous formic acid disproportionation into methanol

Mon, 05/22/2017 - 08:32

Green Chem., 2017, 19,2371-2378
DOI: 10.1039/C6GC03359H, PaperK. Sordakis, A. Tsurusaki, M. Iguchi, H. Kawanami, Y. Himeda, G. Laurenczy
Methanol is produced from the formic acid disproportionation reaction with unprecedented yields under mild conditions.
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Electrocatalytic upgrading of itaconic acid to methylsuccinic acid using fermentation broth as a substrate solution

Mon, 05/22/2017 - 08:32

Green Chem., 2017, 19,2390-2397
DOI: 10.1039/C6GC03153F, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.F. Joschka Holzhauser, Jens Artz, Stefan Palkovits, Dirk Kreyenschulte, Jochen Buchs, Regina Palkovits
An electrocatalytic transformation of biomass based platform chemicals is feasible even using crude fermentation broth.
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Future perspectives for formaldehyde: pathways for reductive synthesis and energy storage

Mon, 05/22/2017 - 08:32

Green Chem., 2017, 19,2347-2355
DOI: 10.1039/C6GC03093A, Perspective Open Access &nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Leo E. Heim, Hannelore Konnerth, Martin H. G. Prechtl
This perspective article spreads light on the recent directions towards the low-temperature reductive synthesis of formaldehyde and its derivatives and low-temperature formaldehyde reforming for hydrogen generation.
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Interfacial acidity in ligand-modified ruthenium nanoparticles boosts the hydrogenation of levulinic acid to gamma-valerolactone

Mon, 05/22/2017 - 08:32

Green Chem., 2017, 19,2361-2370
DOI: 10.1039/C6GC02586B, PaperDavide Albani, Qiang Li, Gianvito Vile, Sharon Mitchell, Neyvis Almora-Barrios, Peter T. Witte, Nuria Lopez, Javier Perez-Ramirez
Supported Ru-HHDMA nanoparticles are superior catalysts for the continuous-flow hydrogenation of levulinic acid to [gamma]-valerolactone due to the bifunctional nature of the metal-ligand interface.
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Making H2 from light and biomass-derived alcohols: the outstanding activity of newly designed hierarchical MWCNT/Pd@TiO2 hybrid catalysts

Mon, 05/22/2017 - 08:32

Green Chem., 2017, 19,2379-2389
DOI: 10.1039/C6GC01979J, PaperA. Beltram, M. Melchionna, T. Montini, L. Nasi, P. Fornasiero, M. Prato
Hydrogen evolution is among the most investigated catalytic processes given the importance of H2 from an industrial and an energy perspective.
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Amphiphilic dipyridinium-phosphotungstate as efficient and recyclable catalyst for triphasic fatty-ester epoxidation and oxidative cleavage with hydrogen peroxide

Mon, 05/22/2017 - 06:31
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC00298J, PaperLuis de la Garza, Karine De Oliveira Vigier, Gregory Chatel, Audrey H Moores
A novel amphiphilic dipyridinium peroxo-phoshotungstate ion pair was developed as a selective and recyclable catalyst for the triphasic epoxidation of fatty acids and esters with hydrogen peroxide. The synthesis of...
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Fatty acid based biocarbonates: Al-mediated stereoselective preparation of mono-, di- and tricarbonates under mild and solvent-less conditions

Mon, 05/22/2017 - 06:31
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC01206C, PaperLeticia Pena Carrodeguas, Alex Cristofol, Jose M Fraile, J A Mayoral, Vicente Dorado Horrillo, Clara Isabel Herrerias, Arjan Willem Kleij
A catalytic method for the preparation of a series of fatty acid derived biocarbonates has been developed using a binary Al-complex/PPNCl catalyst. This catalyst system allows to convert the fatty...
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Highly Effective C-C Bond Cleavage of Lignin Model Compounds

Mon, 05/22/2017 - 06:31
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC00844A, PaperYinling Wang, Qianyi Wang, Jianghua He, Yuetao Zhang
A highly effective method is developed for the C-C bond cleavage of lignin model compounds. The inert C[small alpha]-C[small beta] or C[small alpha]-Cphenyl bond of oxidized lignin model compounds was successfully converted to...
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An Environment-Friendly Protocol for Oxidative Halocyclization of Tryptamine and Tryptophol Derivatives

Thu, 05/18/2017 - 10:40
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC01341H, CommunicationJun Xu, Rongbiao Tong
An environmentally friendlyand efficient protocol (KX/oxone) for oxidative halocyclization of tryptamine/tryptophol derivatives was developed and demonstrated with 28 examples and concise total synthesis of cyclotryptamine alkaloid protubonines A and B....
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Metal-free synthesis of ketones by visible-light induced aerobic oxidative radical addition of aryl hydrazines to alkenes

Wed, 05/17/2017 - 11:25
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC01083D, CommunicationYa Ding, Wenkai Zhang, Hao Li, Yunge Meng, Te Zhang, Qiu-Yun Chen, Chunyin Zhu
A green and cost-effective method has been developed for the conversion of alkenes to ketones under metal-free conditions. The reaction involves the oxidative addtion of alkenes with aryl radicals, which...
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cis,cis-Muconic acid isomerization and catalytic conversion to biobased cyclic-C6-1,4-diacid monomers

Wed, 05/17/2017 - 07:22
Green Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7GC00658F, PaperJack M Carraher, Toni Pfennig, Radhika Giri Giri Rao, Brent H Shanks, Jean-Philippe Tessonnier
Renewable terephthalic and 1,4-cyclohexanedicarboxylic acids can be produced from biomass via muconic acid using a combination of biological and chemical processes. In this conversion scheme, cis,cis-mucononic acid is first obtained...
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