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• 2536-91-6 6-methylbenzothiazol-2-ylamine 
• 106-47-8 4-chloro-aniline 
• 74322-42-2 N-p-Tolyl-N'-p-chlorophenyl thiourea 
• 14731-25-0 5-(4-methyl-anilino)-3H-[1,3,4]thiadiazole-2-thione 
• 29289-13-2 2-iodo-4-methylaniline 
• 2131-55-7 4-Chlorophenyl isothiocyanate 
• 583-68-6 2-bromo-p-toluidine 
• 1397746-42-7 C₁₄H₁₂ClIN₂S 
• 1642135-44-1 C₁₄H₁₀ClIN₂ 

Relevant academic research and scientific papers

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The present invention discloses a novel 2-anilino-6-methylbenzothiazole derivative having the chemical formula (I), or a pharmaceutically acceptable salt, wherein the definition of each substituent is defined in the patent description and claims. This invention also discloses a method for preparing these derivatives as well as preparation of pharmaceutical chemicals for applications in treating hepatitis C.

Copper-catalyzed synthesis of 2-aminobenzothiazoles from carbodiimide and sodium hydrosulfide

An efficient copper-catalyzed method for the synthesis of a variety of 2-aminobenzothiazoles has been developed. The reaction proceeded from carbodiimide and sodium hydrosulfide via a tandem reaction in the presence of copper(ii) trifluoromethanesulfonate to afford the corresponding 2-aminobenzothiazole derivatives in good to perfect yields. This journal is the Partner Organisations 2014.

Copper/N,N,N',N'-tetramethylethylenediamine-catalyzed synthesis of N-substituted benzoheterocycles via C-S cross-coupling at ambient temperature in water

Copper/N,N,N',N'-tetramethylethylenediamine (Cu/TMEDA)-catalyzed ambient temperature tandem reactions of isothiocyanates with 2-iodophenols or 2-iodoanilines in water without the protection of an inert atmosphere are described, which provide a simple, rapid, environmental method for the synthesis of a variety of 2-iminobenzo-1, 3- oxathioles and 2-aminobenzothiazoles in good yields. More important, the present reaction process needs only low amounts of copper catalyst (1mol%) and can yield the products on a gram scale.

Ligand- and solvent-free synthesis of 2-aminobenzothiazoles by copper-catalyzed tandem reaction of 2-haloanilines with isothiocyanates

We report an environmentally friendly, efficient and practical method for the synthesis of 2-aminobenzothiazoles by a copper(II)-catalyzed tandem reaction of 2-haloanilines with isothiocyanates under ligand- and solvent-free conditions in air. The developed methodology conforms to the principles of 'green chemistry' and addresses the shortage of such methods for the synthesis of 2-aminobenzothiazoles. The reaction is quite general and generates a variety of 2-aminobenzothiazoles in good to excellent yields. Copyright

1,10-Phenanthroline-catalyzed tandem reaction of 2-iodoanilines with isothiocyanates in water

The 1,10-phenanthroline-catalyzed tandem reaction of 2-iodoaniline with isothiocyanate in water is described, which provides an environmentally benign, efficient and simple route for the preparation of 2-aminobenzothiazoles. The present tandem process shows broad substrate scope in the absence of transition metals and phase-transfer catalysts. Copyright

A practical synthesis of 2-aminobenzothiazoles via the tandem reactions of 2-haloanilines with isothiocyanates catalyzed by immobilization of copper in MCM-41

The heterogeneous tandem reactions of 2-haloanilines with isothiocyanates were achieved in DMSO using Et3N as base at 80 °C in the presence of a 3-(2-aminoethylamino)propyl-functionalized MCM-41-immobilized copper(II) complex [MCM-41-2N-CuSO4], yielding a variety of 2- aminobenzothiazoles in good to excellent yields. This heterogeneous copper catalyst exhibited higher activity than CuSO4 and can be recovered and recycled by a simple filtration of the reaction solution and used for at least 10 consecutive trials without any decreases in activity.

DDQ-promoted C-S bond formation: Synthesis of 2-aminobenzothiazole derivatives under transition-metal-, ligand-, and base-free conditions

A transition-metal-free method for the intramolecular S-arylation of o-halobenzothiaoureas via DDQ-mediated leading to the 2-aminobenzothiazole derivatives is reported. The reactions are performed at room temperature under ligand- and base-free conditions with good to excellent yields. Georg Thieme Verlag Stuttgart · New York.

Merrifield resin supported phenanthroline-Cu(I): A highly efficient and recyclable catalyst for the synthesis of 2-aminobenzothiazoles via the reaction of 2-haloanilines with isothiocyanates

A novel Merrifield resin supported phenanthroline-Cu(I) complex has been developed and used as a highly efficient and recyclable catalyst in the reaction of 2-halobenzenamines with isothiocyanates for the synthesis of 2-aminobenzothiazoles. The reactions

Synthesis of N-substituted-2-Aminobenzothiazoles by ligand-Free copper(I)-Catalyzed cross-Coupling reaction of 2-haloanilines with isothiocyanates www.eurjoc.org

A novel and efficient formation of N-substituted-2-aminobenzothiazoles by a ligand-free copper(I)-catalyzed one-pot cascade process was developed. A variety of isothiocyanates coupled with 2-iodoanilines to give N-substituted-2-amino-benzothiazoles in mod