RSC - Green Chem. latest articles

CeO2-catalysed one-pot selective synthesis of esters from nitriles and alcohols

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16424H, Paper

Masazumi Tamura, Takuya Tonomura, Ken-ichi Shimizu, Atsushi Satsuma
Thirteen kinds of metal oxides were tested for the one-pot selective synthesis of esters from nitriles and alcohols. Ceria (CeO₂) showed more than two orders of magnitude higher activity than the other oxides.
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Single-step catalytic liquid-phase hydroconversion of DCPD into high energy density fuel exo-THDCPD

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16264D, Paper

M. G. Sibi, Bhawan Singh, R. Kumar, C. Pendem, A. K. Sinha
Novel single-step production of jet propellent exo-tetrahydrodicyclopentadiene via retro-Diels-Alder reaction at moderate temperature and pressure.
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Biogenic synthesis of photocatalytically active Ag/TiO2 and Au/TiO2 composites

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16082J, Paper

Weibin Liang, Tamara L. Church, Andrew T. Harris
M/TiO₂ composites prepared using C. limon extract are photocatalysts at least as active as composites prepared using NaBH₄.
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Electrochemical oxidation of 4-substituted urazoles in the presence of arylsulfinic acids: an efficient method for the synthesis of new sulfonamide derivatives

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16342J, Paper

Fahimeh Varmaghani, Davood Nematollahi, Shadpour Mallakpour, Roya Esmaili
Electrosynthesis of new sulfonamide derivatives was carried out via the electrooxidation of 4-substituted urazoles in the presence of arylsulfinic acids.
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Pd-sodium carboxymethyl cellulose nanocomposites display a morphology dependent response to hydrogen gas

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16456F, Communication

Jianli Zou, K. Swaminathan Iyer, Colin L. Raston
A facile strategy has been developed to alter the response of a hydrogen sensor by changing the morphology of Pd nanocomposites.
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Catalyst-free approach for solvent-dependent selective oxidation of organic sulfides with oxone

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC00027J, Paper

Bing Yu, An-Hua Liu, Liang-Nian He, Bin Li, Zhen-Feng Diao, Yu-Nong Li
Selective oxidation with oxone to sulfoxides or sulfones can be achieved by changing the solvent without additional catalyst or additive.
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Industrial commitment to green and sustainable chemistry: using renewable materials & developing eco-friendly processes and ingredients in cosmetics

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16341A, Paper

Michel Philippe, Blaise Didillon, Laurent Gilbert
This article presents the approach of a cosmetic company regarding the implementation of green chemistry principles and the introduction of green indicators.
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Synthesis of novel fused heterocycle-oxa-aza-phenanthrene and anthracene derivatives via sequential one-pot synthesis in aqueous micellar system

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16425F, Communication

Madhulika Srivastava, Jaya Singh, Shyam B. Singh, Kamleshwar Tiwari, Vijay K. Pathak, Jagdamba Singh
Oxa-aza-phenanthrene and anthracene derivatives which contain a bridgehead nitrogen are synthesized in an aqueous micellar system. The synthetic route is easy and yield is excellent. In this proposed method, solvent, base and surfactant are optimized and the best result was obtained by DBU in water with surfactant CTAB. This method is an efficient, viable and sequential one pot synthetic route for the construction of desired product.
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Microwave-assisted synthesis of 2,3-dihydropyrido[2,3-d]pyrimidin-4(1H)-ones catalyzed by DBU in aqueous medium

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16469H, Paper

Liupan Yang, Daxin Shi, Shu Chen, Hongxin Chai, Danfei Huang, Qi Zhang, Jiarong Li
An efficient and green protocol for synthesis of 2,3-dihydropyrido[2,3-d]pyrimidin-4(1H)-ones catalyzed by DBU under microwave irradiation in water has been developed.
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New aspects for biomass processing with ionic liquids: towards the isolation of pharmaceutically active betulin

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16389F, Paper

Anna K. Ressmann, Katharina Strassl, Peter Gaertner, Bin Zhao, Lasse Greiner, Katharina Bica
By utilising ionic liquids the pharmaceutically active triterpene betulin can be extracted from biomass with significantly improved extraction yield and purity.
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Nano rod-shaped and reusable basic Al2O3 catalyst for N-formylation of amines under solvent-free conditions: A novel, practical and convenient 'NOSE' approach

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16020J, Paper

Vijay Kumar Das, Rashmi Rekha Devi, Prasanta Kumar Raul, Ashim Jyoti Thakur
An efficient 'NOSE' protocol for the N-formylation of amines catalyzed by rod-shaped basic nano Al₂O₃ has been developed.
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Patterned growth of nanocrystalline silicon thin films through magnesiothermic reduction of soda lime glass

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16459K, Communication

Deniz P. Wong, Hsiang-Ting Lien, Yit-Tsong Chen, Kuei-Hsien Chen, Li-Chyong Chen
In this study, we report a novel, low-cost and green process in synthesizing nc-Si thin films with the possibility of mass production and pattern formation.
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Thiamine hydrochloride (VB1): an efficient promoter for the one-pot synthesis of benzo[4,5]imidazo[1,2-a]pyrimidine and [1,2,4]triazolo[1,5-a]pyrimidine derivatives in water medium

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16499J, Paper

Junhua Liu, Min Lei, Lihong Hu
An efficient and rapid procedure for the synthesis of benzo[4,5]imidazo[1,2-a]pyrimidine and [1,2,4]triazolo[1,5-a]pyrimidine derivatives catalyzed by thiamine hydrochloride (VB₁) in water has been developed.
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An atom-efficient synthetic method: carbosilylations of alkenes, alkynes, and cyclic acetals using Lewis and Bronsted acid catalysts

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16291A, Critical Review

Ken Motokura, Toshihide Baba
Catalytic allylsilylations and arylsilylations of alkenes, alkynes, and cyclic acetals using homogeneous and heterogeneous Lewis and Bronsted acids are summarized.
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Natural polyphenols as safe alternatives to hydroquinone for the organocatalyzed reduction of dioxygen dissolved in water by diethylhydroxylamine (DEHA)

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16503A, Paper

Raphael Lebeuf, Ying Zhu, Veronique Nardello-Rataj, Jean-Pierre Lallier, Jean-Marie Aubry
Natural polyphenols as safe alternatives to hydroquinone for the organocatalyzed reduction of dioxygen dissolved in water by diethylhydroxylamine (DEHA).
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Design, synthesis, and solution behaviour of small polyamines as switchable water additives

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16240G, Paper

Sean M. Mercer, Tobias Robert, Daniel V. Dixon, Chien-Shun Chen, Zahra Ghoshouni, Jitendra R. Harjani, Soran Jahangiri, Gilles H. Peslherbe, Philip G. Jessop
Switchable water, an aqueous solvent with switchable ionic strength, requires CO₂ (as the trigger) and a polyamine ionogen, for which structural design principles are described.
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Fast, solvent-free and hydrogen-bonding-mediated asymmetric Michael addition in a ball mill

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16521J, Communication

Yi-Feng Wang, Ru-Xiang Chen, Ke Wang, Bin-Bin Zhang, Zhao-Bo Li, Dan-Qian Xu
We report a highly efficient H-bonding-mediated enantioselective Michael addition reaction in a planetary ball mill.
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Template-free synthesis of an electroactive Au-Calix-PPY nanocomposite for electrochemical sensor applications

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16232F, Paper

Shivani Tanwar, Min-Chieh Chuang, K. Sudhakara Prasad, Ja-an Annie Ho
An eco-friendly approach to synthesize the nanocomposite is described, herein. Synthesis parameters were optimized, the material is well characterized, possesses high electrocatalytic activity and applicability as a sensor for formaldehyde and enzyme free glucose detection.
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Power dissipation in microwave-enhanced in situ transesterification of algal biomass to biodiesel

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16195H, Paper

Prafulla D. Patil, Harvind Reddy, Tapaswy Muppaneni, Aravind Mannarswamy, Tanner Schuab, F. Omar Holguin, Peter Lammers, Nagamany Nirmalakhandan, Peter Cooke, Shuguang Deng
We investigated the effect of power dissipation on microwave-accelerated simultaneous extraction and transesterification of dry algal biomass (Nannochloropsis salina) to biodiesel.
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Halogen-free ultra-high flame retardant polymers through enzyme catalysis

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16192C, Paper

Sethumadhavan Ravichandran, Subhalakshmi Nagarajan, Bon Choel Ku, Bryan Coughlin, Todd Emrick, Jayant Kumar, Ramaswamy Nagarajan
Biocatalytic green polymerization of substituted deoxybenzoins in predominantly aqueous conditions for the synthesis of ultra-high flame retardant poly(deoxybenzoins) with high char forming capability and low heat release capacities.
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Natural biopolymer surface of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)-photoinduced modification with triarylsulfonium salts

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16399C, Paper

Davy-Louis Versace, Pierre Dubot, Pierre Cenedese, Jacques Lalevee, Olivier Soppera, Jean-Pierre Malval, Estelle Renard, Valerie Langlois
Efficient green UV-photografting method for modifying PHBHV film in aqueous media to develop biological microdevices.
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Photooxygenations in a bubble column reactor

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16439F, Communication

Alexander Yavorskyy, Oksana Shvydkiv, Carolin Limburg, Kieran Nolan, Yan M. C. Delaure, Michael Oelgemoller
A novel column reactor was constructed and successfully applied to dye-sensitized photooxygenation reactions in aqueous alcohol solutions.
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Recyclable and stable ruthenium catalyst for free radical polymerization at ambient temperature initiated by visible light photocatalysis

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16409D, Communication

Guan Zhang, In Young Song, Taiho Park, Wonyong Choi
A ruthenium complex catalyst immobilized on Nafion coated silica shows recyclable and stable photocatalytic activity for free radical polymerization at mild conditions.
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The impact of ionic liquid pretreatment on the chemistry and enzymatic digestibility of Pinus radiata compression wood

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16362D, Paper

Kirk M. Torr, Karen T. Love, Ozgul P. Cetinkol, Lloyd A. Donaldson, Anthe George, Bradley M. Holmes, Blake A. Simmons
Pretreatment with 1-ethyl-3-methylimidazolium acetate induced chemical and structural changes in pine compression wood and improved enzymatic cellulose hydrolysis by 25-fold.
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An aqueous pathway to polymeric foaming with nanoclay

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16313F, Paper

G. Harikrishnan, Sachchida N. Singh, Chris I. Lindsay, Christopher W. Macosko
A green route for synthesis of foamed polymer nanocomposite is introduced. The technique uses an aqueous route which bypasses the organic surface modification of clay. The use of intermediate solubilization agents for clay dispersion is also avoided.
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Transition metal based catalysts in the aerobic oxidation of alcohols

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16344F, Tutorial Review

Camilla Parmeggiani, Francesca Cardona
Environmentally friendly oxidations of alcohols: implementation of a transition metal-based catalyst with oxygen is an emerging alternative to traditional procedures.
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Preparation of clay-supported Sn catalysts and application to Baeyer-Villiger oxidation

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16437J, Paper

Takayoshi Hara, Moriaki Hatakeyama, Arum Kim, Nobuyuki Ichikuni, Shogo Shimazu
Clay-intercalated Sn catalysts show extremely high performance in Bayer-Villiger oxidation and are reusable without any significant loss of activity or selectivity.
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Efficient conversion of microcrystalline cellulose to 1,2-alkanediols over supported Ni catalysts

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC15946E, Paper

Xicheng Wang, Lingqian Meng, Feng Wu, Yijun Jiang, Lei Wang, Xindong Mu
High yield of 1,2-alkanediols can be produced via one-pot catalytic hydrogenolysis of high-crystalline cellulose over Ni/ZnO catalysts.
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Catalytic conversion of cellulose to hexitols with mesoporous carbon supported Ni-based bimetallic catalysts

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16364K, Communication

Jifeng Pang, Aiqin Wang, Mingyuan Zheng, Yanhua Zhang, Yanqiang Huang, Xiaowei Chen, Tao Zhang
Robust and highly active Ni-based bimetallic catalysts supported on mesoporous carbon have been developed for catalytic conversion of cellulose to hexitols, over which the maximum hexitol yield reached 59.8%.
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Direct synthesis of unsymmetrical ethers from alcohols catalyzed by titanium cation-exchanged montmorillonite

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16135D, Communication

Takato Mitsudome, Tsuyoshi Matsuno, Shoichiro Sueoka, Tomoo Mizugaki, Koichiro Jitsukawa, Kiyotomi Kaneda
Titanium-exchanged montmorillonite (Ti⁴⁺-mont) was found to act as an efficient heterogeneous catalyst for the etherification of various alcohols under mild reaction conditions. Ti⁴⁺-mont was reusable and applicable to scale-up conditions.
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Domino reactions in water: diastereoselective synthesis of densely functionalized indolyldihydrofuran derivatives

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16517A, Paper

Pethaiah Gunasekaran, Kamaraj Balamurugan, Sathiyamoorthi Sivakumar, Subbu Perumal, J. Carlos Menendez, Abdulrahman I. Almansour
A library of trans-5-aroyl-2-(indol-3-yl)-4-aryl-4,5-dihydrofuran-3-carbonitriles was diastereoselectively synthesized in excellent yields from the reaction of 2-(3-indolylcarbonyl)-3-aryl-2-propenenitriles with (2-aryl-2-oxoethyl)pyridinium bromides in the presence of triethylamine via a simple, user-friendly domino process carried out in water.
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A one-pot hydrothermal synthesis of tunable dual heteroatom-doped carbon microspheres

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16415A, Paper

Stephanie-Angelika Wohlgemuth, Filipe Vilela, Maria-Magdalena Titirici, Markus Antonietti
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Production and purification of an extracellular lipolytic enzyme using ionic liquid-based aqueous two-phase systems

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16428K, Paper

Sonia Patricia Marques Ventura, Rafael Lemos Freire de Barros, Jose Murillo de Pinho Barbosa, Cleide Mara Faria Soares, Alvaro Silva Lima, Joao Araujo Pereira Coutinho
The successful use of IL-based ATPS as separation techniques for the extraction and purification of enzymes from a fermentation process
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Measuring the effect of ionic liquids on laccase activity using a simple, parallel method

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16009A, Paper

Lars Rehmann, Ekaterina Ivanova, Jamie L. Ferguson, H. Q. Nimal Gunaratne, Kenneth R. Seddon, Gillian M. Stephens
Laccases catalyse lignin depolymerisation and numerous other industrially useful processes. Using a new parallel assay, we show that laccase retains activity in the presence of a number of ionic liquids.
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An in-water, on-water domino process for synthesis

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16259H, Communication

Philip Norcott, Calan Spielman, Christopher S. P. McErlean
By exploiting the different aqueous solubility of organic molecules, a domino process involving in-water and on-water chemistry has been developed. Water is utilized as a reaction medium, a product partitioner and a reaction catalyst.
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Transamidation of amides with amines under solvent-free conditions using a CeO2 catalyst

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16316K, Paper

Masazumi Tamura, Takuya Tonomura, Ken-ichi Shimizu, Atsushi Satsuma
Commercial ceria effectively catalyzes transamidation of various primary amides with various amines to yield corresponding N-alkyl amides under solvent-free conditions.
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A highly active magnetically recoverable nano ferrite-glutathione-copper (nano-FGT-Cu) catalyst for Huisgen 1,3-dipolar cycloadditions

Green Chem., 2012, Advance Article
DOI: 10.1039/C2GC16301B, Paper

R. B. Nasir Baig, Rajender S. Varma
Magnetically recoverable heterogeneous Cu catalyst has been used for an eco-friendly synthesis of 1,2,3-triazoles via one-pot multi component reaction using MW irradiation. The catalyst was easily recovered using external magnet and reused in subsequent reactions.
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