Letters in Organic Chemistry


Alberto Marra
University of Montpellier

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Open Access Articles

Asymmetric Reactions in Water Catalyzed by L-Proline Tethered on Thermoresponsive Ionic Copolymers open Access plus

Volume: 17   Issue: 9
Pp: 717-725
Noriyuki Suzuki*, Daisuke Mizuno, Armando M. Guidote, Shun Koyama, Yoshiro Masuyama and Masahiro Rikukawa

One New C21 Steroidal Glycosides from the Leaves of Cynanchum hancockianum open Access plus

Volume: 16   Issue: 7
Pp: 556-559
Shubei Yu, Xixi Lin, Yi Zheng, Zheng Wu, Wei Zheng and Liman Qiao*

Synthesis of 1-(3-Phenylpropyl)-4-(pyridinylmethoxy)-[1,2,4]triazolo[4,3-a] quinoxalines open Access plus

Volume: 16   Issue: 1
Pp: 25-29
Dominik Summer and Barbara Matuszczak*

An Efficient Oxidation of Alcohols by Aqueous H2O2 with 1,3-Dibromo- 5,5-Dimethylhydantoin open Access plus

Volume: 15   Issue: 10
Pp: 895-898
Jieun Lee and Jong Chan Lee*

Synthesis of Secondary Phosphine Oxides by Substitution at Phosphorus by Grignard Reagents open Access plus

Volume: 15   Issue: 5
Pp: 387-393
Anna Tripolszky and Gyorgy Keglevich*

Direct Oxidation of Aldehydes to Methyl Esters with Urea Hydrogen Peroxide and p-Toluenesulfonyl Chloride open Access plus

Volume: 14   Issue: 10
Pp: 725-728
Deuk Jun Jeong, Su Bin Lee and Jong Chan Lee*

FledFold: A Novel Software for RNA Secondary Structure Prediction open Access plus

Volume: 14   Issue: 9
Pp: 714-716
Qi Zhao, Yuanning Liu, Yunna Duan, Tao Dai, Rui Xu, Hao Guo, Daiming Fan, Yongzhan Nie and Hao Zhang*

A Short Route to the Ester (±) HomoSarkomycin via Johnson-Claisen Rearrangement open Access plus

Volume: 14   Issue: 3
Pp: 181-185
Mαhamed Saied, Rafik Gatri*, Abdullah Sulaiman Al-Ayed, Youssef Arfaoui and Mohamed Moncef El Gaied

Synthesis of bis(indolyl)methanes Catalyzed by Triethylborane open Access plus

Volume: 12   Issue: 5
Pp: 332-336
J. Pablo Garcia Merinos, Heraclio Lopez Ruiz, Yliana Lopez and Susana Rojas

The Rational Synthesis of Fenidronate open Access plus

Volume: 11   Issue: 5
Pp: 368-373
Alajos Grun, Rita Kovács, Dávid Illés Nagy, Sándor Garadnay, István Greiner and Gyorgy Keglevich

Efficient Synthesis of 6-O-methyl-scutellarein from Scutellarin via Selective Methylation open Access plus

Volume: 10   Issue: 10
Pp: 733-737
Min-Zhe Shen, Zhi-Hao Shi, Nian-Guang Li, Hao -Tang, Qian-Ping Shi, Yu-Ping Tang, Jian-Ping Yang and Jin-Ao Duan

1,2,4-Triazoles: A Review of Synthetic Approaches and the Biological Activity open Access plus

Volume: 10   Issue: 10
Pp: 693-714
Suresh Maddila, Ramakanth Pagadala and Sreekanth B. Jonnalagadda

Copper and Iron-assisted Palladium-catalyzed Direct Arylation of Azoles with Arylboronic Acids under Ligand and Base-free Conditions open Access plus

Volume: 10   Issue: 9
Pp: 668-673
Xiang-Mei Wu and Qiu-Xian Shen

A Simple and Highly Efficient Procedure for One-Pot Synthesis of 2- Azetidinones Using 3,5-Dinitrobenzoyl Chloride open Access plus

Volume: 10   Issue: 9
Pp: 645-650
Alireza Darvishi, Maaroof Zarei and Mohammad Reza Akhgara

A Novel Semisynthetic Anion Receptor: Synthesis and Ion Recognition of (1-H-pyrrol-2-yl)-4-oxo-perezone open Access plus

Volume: 10   Issue: 9
Pp: 632-636
Luis Chacón-García, Mario Valle-Sánchez and Claudia A. Contreras-Celedón

Improvement of Alcohol Dehydrogenase and Horseradish Peroxidase Loadings in Ethanol Determination by a Bienzyme Sensor open Access plus

Volume: 10   Issue: 8
Pp: 611-616
Aurelia Magdalena Pisoschi

Halogen Exchange via a Halogenation of Diaryliodonium Salts with Cuprous Halide open Access plus

Volume: 10   Issue: 8
Pp: 541-548
Jian Li, Li Liu, Dong Ding and Jiang-tao Sun

The Pd(0) Nanoparticles Stabilized by Collagen Fibers as a Recyclable Heterogeneous Catalyst for the Cyanation of Aryl Bromides Using K4Fe(CN)6 as Non-toxic Source of Cyanide open Access plus

Volume: 10   Issue: 7
Pp: 523-526
Siavash Bahari

New Green, Recyclable Magnetic Nanoparticles Supported Amino Acids as Simple Heterogeneous Catalysts for Knoevenagel Condensation open Access plus

Volume: 10   Issue: 7
Pp: 468-477
D. Girija, H.S. Bhojya Naik, B. Vinay Kumar, C.N. Sudhamani and K. N. Harish

A Clean and Efficient Conversion of Aldehydes into the Corresponding Nitriles Using Ionic Supported Triphenylphosphine and CBr4 open Access plus

Volume: 10   Issue: 6
Pp: 442-444
Congde Huo, Cheng Wang, Dongcheng Hu and Xiaodong Jia

The Syntheses, Molecular Structures, Spectroscopic Properties (IR, Micro– Raman, NMR and UV–vis) and DFT Calculations of Antioxidant 3– alkyl–4–[3–methoxy–4–(4–methylbenzoxy)benzylidenamino]–4,5–dihydro– 1H–1,2,4–triazol–5–one Molecules open Access plus

Volume: 10   Issue: 6
Pp: 395-441
Halil Gokce, Semiha Bahceli, Onur Akyildirim, Haydar Yuksek and Ozlem Gursoy Kol

Microwave-Assisted Solid-Liquid Phase Alkylation of Naphthols open Access plus

Volume: 10   Issue: 5
Pp: 330-336
Erika Balint, Orsolya Kovacs, Laszlo Drahos and Gyorgy Keglevich

Simple Stereoselective Synthesis of Unsaturated Lactone Intermediates and Their Conversion into Natural Dihydropyranones and Their Enantiomers# open Access plus

Volume: 10   Issue: 5
Pp: 317-323
Digambar Balaji Shinde, Boddu Shashi Kanth, Avula Satyakumar, V.T. Kamble and Biswanath Das

Comparison of Novel Tacrine and 7-MEOTA Derivatives with Aromatic and Alicyclic Residues: Synthesis, Biological Evaluation and Docking Studies open Access plus

Volume: 10   Issue: 4
Pp: 291-297
Jan Korabecny, Ladislav Janovec, Kamil Musilek, Filip Zemek, Anna Horova, Eugenie Nepovimova, Rafael Dolezal, Veronika Opletalova, Jana Hroudova, Zdenek Fisar, Young-Sik Jung and Kamil Kuca

A New Proposal for the Estimation of the Aromatic Character open Access plus

Volume: 10   Issue: 4
Pp: 277-282
Maurizio D`Auria

Efficient Synthesis of Aromatic Nitriles via Cyanation of Aryl Bromides and K4[Fe(CN)6] Catalyzed by a Palladium(II) Complex open Access plus

Volume: 10   Issue: 3
Pp: 213-215
Mengping Guo, Junying Ge, Zhiyong Zhu and Xiaochun Wu

A Very Simple, Highly Efficient and Catalyst-free Procedure for the NFormylation of Amines Using Triethyl orthoformate in Water Under Ultrasound-irradiation open Access plus

Volume: 10   Issue: 3
Pp: 209-212
Davood Habibi, Hesam Sahebekhtiari, Mahmoud Nasrollahzadeh and Ahmad Taghipour

Rapid and Efficient Synthesis of N-alkylbenzamides Under Microwave Irradiation open Access plus

Volume: 10   Issue: 2
Pp: 126-130
Jan K. Cermak, Karel Kolar and Vladimir Cirkva

A Mild and Green Method for the N-BOC Protection of Amines without Assistant of Catalyst Under Solvent-free Conditions open Access plus

Volume: 10   Issue: 2
Pp: 121-125
Mohammad Majid Mojtahedi, Nina Niknejad and Hojat Veisi

A Practical Synthesis and X-ray Crystallographic Analysis of Dithymoquinone, a Photodimer of Thymoquinone open Access plus

Volume: 9   Issue: 10
Pp: 762-766
Alan L. Myers, Yan-Ping Zhang, Mark A. Kramer, William G. Bornmann, Ahmed Kaseb, Peiying Yang and Hai T. Tran

Syntheses of Fused Thiophenes: [7]Helicene and Double Helicene Bearing Chiral Alkyl Chains open Access plus

Volume: 9   Issue: 10
Pp: 706-710
Juanjuan Yang, Chunli Li, Zhihua Wang and Hua Wang

Enantioselective Addition of Diethylzinc to Aldehydes by Chiral Oxazolidine–Titanium Complex open Access plus

Volume: 9   Issue: 9
Pp: 644-649
Nan Wu, Rongcheng Bo, Rongli Zhang, Xi Jiang, Yu Wan, Zhou Xu and Hui Wu

Practical and Scalable Synthesis of (Z)-9-Tricosene, the Housefly Sex Pheromone open Access plus

Volume: 9   Issue: 9
Pp: 628-631
Miri Kim, Arigala Pitchaiah, No-Joong Park, In Taek Hwang and Kee-In Lee

The Synthesis of Allosamidin and Its Analogue Di-N-Acetyl-β-Chitobiosyl NAG-Thiazoline Using the Photosensitive o-Nitrobenzyl Ether Tether as Linker open Access plus

Volume: 9   Issue: 8
Pp: 577-579
Gangliang Huang and Fei Cheng

Synthesis of 1,3,6-Trioxygenated Prenylated Xanthone Derivatives as Potential Antitumor Agents open Access plus

Volume: 9   Issue: 8
Pp: 549-555
Chan K. Lim, Lai-Yeng Tho, Yang M. Lim, Syed A. A. Shah and Jean-Frederic F. Weber

Revisit: Eaton’s Reagent Catalyzed Synthesis of Mono and Bis-Chalcone Derivatives open Access plus

Volume: 9   Issue: 7
Pp: 526-529
Shrikrishna. D. Tupare, Santosh V. Nalage, Sharad R. Bobe, Shivshankar N. Hallale, Sheshanath V. Bhosale, Sanjay K. Vyawahare, Satish A. Dake, Sidhanath V. Bhosale and Rajendra P. Pawar

Zinc Hydrogen Sulfate Promoted Multi-component Preparation of Highly Functionalized Piperidines open Access plus

Volume: 9   Issue: 7
Pp: 497-502
Majid Ghashang

An Efficient Green MCR Protocol for the Synthesis of New Betti Bases via Mannich-Type Reaction open Access plus

Volume: 9   Issue: 6
Pp: 451-456
Abolfazl Olyaei, Mojgan Zarnegar, Mahdieh Sadeghpour and Mortaza Rezaei

Highly Efficient One Step Synthesis of Primary Amines from B-Chlorodialkylboranes open Access plus

Volume: 9   Issue: 6
Pp: 383-385
Sanjay V. Malhotra and Herbert C. Brown

Unusual Course of the Reaction of Lawesson’s Reagent with β-Phosphoryl- β’-carbethoxyhydrazones: First Synthesis of 5-Mercapto-3-(methylthiophosphoryl) pyrazoles open Access plus

Volume: 9   Issue: 5
Pp: 320-324
Emna Chebil and Soufiane Touil

New 2-Phenylquinoline Derivatives: Synthesis and Preliminary Evaluation as Antimicrobial Agents open Access plus

Volume: 9   Issue: 5
Pp: 309-313
Saida Benzerka, Abdelmalek Bouraiou, Sofiane Bouacida, Thierry Roisnel, Chafia Bentchouala, Farida Smati and Ali Belfaitah

A Novel Practical Synthesis of Pazopanib: An Anticancer Drug open Access plus

Volume: 9   Issue: 4
Pp: 276-279
YiCheng Mei, BaoWei Yang, Wei Chen, DanDan Huang, Ying Li, Xin Deng, BaoMing Liu, JingJie Wang, Hai Qian and WenLong Huang

Novel Peptide Mimetics Based on N-protected Amino Acids Derived from Isomannide as Potential Inhibitors of NS3 Serine Protease of Hepatitis C Virus open Access plus

Volume: 9   Issue: 4
Pp: 239-249
Thalita G. Barros, Bruna C. Zorzanelli, Sergio Pinheiro, Monique A. de Brito, Amilcar Tanuri, Emmerson C.B. da Costa, Ronaldo S. Mohana-Borges, Carlos R. Rodrigues, Alessandra T.M. Souza, Vitor F. Ferreira and Estela M.F. Muri

Radical Cation Salts Induced aza-Diels-Alder Reaction: Synthesis of Hexahydrofuro[3,2-c]- quinoline Derivatives open Access plus

Volume: 9   Issue: 3
Pp: 221-224
Zhong Jia, Yan Ren, Cong-De Huo, Xiang-Ning Chen, Chong-Xiang Tong and Xiao-Dong Jia

Magnetic Nanoparticles Catalyzed N-Tert-Butoxycarbonylation of Amines and Amine Derivatives open Access plus

Volume: 9   Issue: 3
Pp: 165-168
Jafar Akbari, Soghra B. Sajirani, Jafar M. Nezhad and Akbar Heydari

Study of the Regio- and Stereoselectivity of [3+2] Cycloaddition of Nitrile Oxides to Various Racemic 3-acyloxy and 3-hydroxybut-1-enes open Access plus

Volume: 9   Issue: 2
Pp: 96-100
Heithem Abda, Kaiss Aouadi, David Gueyrard, Jean-Pierre Praly and Moncef Msaddek

Triphenylphosphine Catalyzed, One-Pot, Multicomponent Synthesis of Spirooxindoles open Access plus

Volume: 9   Issue: 2
Pp: 101-105
Syed Riyaz, A. Naidu and Pramod K. Dubey

Platinum Complexes of Five- and Six-Membered P-Heterocycles as Potential Catalysts open Access plus

Volume: 7   Issue: 8
Pp: 612-620
Gyorgy Keglevich and Laszlo Kollar

Preparation of Disubstituted Phenyl Propargyl Alcohols, their Use in Oxathiolene Oxide Synthesis, and Evaluation of the Oxathiolene Oxide Products as Anticarcinogenic Enzyme Inducers open Access plus

Volume: 6   Issue: 3
Pp: 242-251
Maben Ying, Matthew G. Smentek, Rong Ma, Cynthia S. Day, Suzy V. Torti and Mark E. Welker

Eco-Friendly Accomplishment of the Extended Kabachnik – Fields Reaction; a Solvent- and Catalyst-Free Microwave-Assisted Synthesis of α- Aminophosphonates and α-Aminophosphine Oxides open Access plus

Volume: 5   Issue: 8
Pp: 616-622
Gyorgy Keglevich and Anna Szekrenyi