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A Scope of Chiral Cyclopropanations of Various α-functionalized Diazoketone Derivatives with Styrene Catalyzed by p-Nitro Ru(II)-diphenyl-Pheox Complex

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (11)

Following the success of the first intermolecular cyclopropanations of diazo acetoxy acetone with olefins using a novel p-nitro-Ru(II)-diphenyl-Pheox ......

Convenient Synthetic Approaches for Novel Impurities of Propisochlor Herbicide

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (5)

A facile and convenient synthesis of two new and one known impurities of Propisochlor, 2-chloro-N-(2-chloroethanoyl)-N-(2-ethyl-6-methylphenyl)-ethana......

[EMIm][BH3CN] Ionic Liquid as an Efficient Catalyst for the Microwave-Assisted One-Pot Synthesis of Triaryl Imidazole Derivatives

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (10)

In this present investigation, efficient and general protocols for the synthesis of a series of imidazoles 4(a-p) derivatives have been developed by c......

Total Syntheses and Anti-inflammatory Evaluations of Karanjin and its Natural Analogues

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (6)

Karanjin (1) is a natural furanoflavonol derivative isolated from seeds of Pongamia pinnata (L.) Pierre. In this paper, we have accomplished a concise......

Direct Vinylation of Activated Methines by a Vinylsulfonium Salt

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (5)

Vinylation of activated methines is a synthetically useful and challenging transformation. Traditional methods for this transformation always encounte......

Design, Synthesis and Biological Evaluation of Nucleozin Sulfonyl Piperazine Derivatives as Anti-influenza A Virus Inhibitors

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (6)

Influenza A viruses have caused worldwide epidemics and pandemics by reassortment and generation of drug-resistant mutants, which leads to an urgent n......

Alkaline Methanolysis and Octylamine Addition Products of Dehydrocostus Lactone Isolated from Echinops kebericho Root

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (5)

Dehydrocostus lactone is biosynthesized in Saussurea lappa (commonly known as costus), Echinops kebericho, and E. amplexicaulis. Since reports describ......

Synthesis and Self-assembly of a Novel Amphiphilic Tri-arm Star-shaped Copolymer Poly(ethylene oxide)-b-Poly(e-caprolactone)

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (10)

Amphiphilic tri-arm star-shaped copolymers, poly(ethylene oxide)-b-poly(e-caprolactone) PEO3-b-PCL3, with different poly (e-caprolactone) (PCL) molecu......

Synthesis and Mesomorphic Properties of New Non-symmetric Liquid Crystal Dimers

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (7)

New non-symmetric liquid crystal dimers, N-(4-(n-(4-(benzothiazol-2-yl)phenoxy) alkyloxy)benzylidene)-2,4-difluoroaniline (DSFCn), containing two meso......

In Silico Screening of Some Anti-Cancer Drugs Against the Main Protease of COVID-19 Using Molecular Docking

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (1)

The SARS-CoV-2 pandemic has led to major worldwide health concerns. Design and detection of effective drugs and adjuvant therapies to treat COVID-19 d......

Simplified Procedure for Application of DBE, the Rule of 13 & Nitrogen Rule in Structure Elucidation of Organic Compounds

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (3)

Determination of the exact structure of any compound is an extremely critical task. Primarily organic chemistry relies on NMR, IR & Mass spectrome......

One Pot Synthesis of Benzothiazole Derivatives by Nano Silica-based Complex in an Aqueous Medium

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (3)

We successfully synthesized novel silica-supported Ni (II)-PLP-ONNO Schiff base/SBA-15 complex, as a mesoporous catalyst, whose characterization was d......

Synthesis, Molecular Docking Analysis and In vitro Evaluation of 1,4-Dihydroxyanthraquinone Derivatives As Anti-Trypanosomal Agents

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (6)

Hydroxy-substituted anthraquinones are among the most important derivatives in organic synthesis. The attractive biological properties of these compou......

An Improved Synthesis of Disubstituted 2H-indazoles using Microwaves

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (9)

Microwaves have been used to produce a practical, high-yielding, and scalable synthesis method for producing disubstituted 2H-indazoles. With this tec......

A Facile and Green Nitration of Easily-Hydrolyzed Aromatic Compounds Based on Direct Filtration and H2SO4 Recycling

期刊: LETTERS IN ORGANIC CHEMISTRY, 2023; 20 (11)

The conventional mixed acid nitration of aromatic hydrocarbons has been extensively applied in the industry, but usually, it is not highly selective a......

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