77201-76-4

Upstream product

• 1122-91-4 4-bromo-benzaldehyde 
• 23451-96-9 2-amino-5-methylthiophenol 
• 31183-91-2 2-[(2-amino-5-methylphenyl)dithio]-4-methylphenylamine 
• 106-49-0 p-toluidine 
• 2536-91-6 6-methylbenzothiazol-2-ylamine 
• 2942-15-6 6-methylbenzothiazole 
• 99-90-1 para-bromoacetophenone 

Downstream Products

• 1072346-17-8 2,9-bis(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-4,7-diphenyl-1,10-phenanthroline 

Relevant academic research and scientific papers

Colourless p-phenylene-spaced bis-azoles for luminescent concentrators

We report on the synthesis of new push-pull imidazole-benzothiazole and thiazole-benzothiazole fluorophores obtained in good yields by using direct C-H arylation synthetic strategies. Spectroscopic investigations in CHCl3 solution evidenced that the 1,4-phenylene-spaced imidazole-benzothiazole bearing an electron-donating dimethylamino group achieved a trade-off between fluorescence maximum (516 nm), Stokes shift (165 nm) and a quantum yield higher than 0.4. Dispersions of the selected fluorophore in poly (methyl methacrylate) (PMMA) thin films mostly maintained the optical features in solution with significant light transmittance in the visible region (90% at 440 nm), and a brilliant green emission at 500 nm. Photocurrent experiments performed on PMMA thin films coated over high purity transparent glasses promoted their use in the development of colourless luminescent solar concentrators with optical efficiencies close to 6%.

Metal-Free Synthesis of 2-Arylbenzothiazoles from Aldehydes, Amines, and Thiocyanate

A highly efficient method for the synthesis of 2-arylbenzothiazoles has been developed using readily available aromatic amines, benzaldehydes, and NH4SCN as a sulfur source. A library of 2-arylbenzothiazoles with wide functional group compatibility has been synthesized in good yields through iodine-mediated oxidative annulation.

Efficient 2-aryl benzothiazole formation from acetophenones, anilines, and elemental sulfur by iodine-catalyzed oxidative C(CO)-C(alkyl) bond cleavage

A novel and efficient iodine-catalyzed one-pot reaction of aromatic amines, acetophenones, and elemental sulfur for the synthesis of 2-aryl benzothiazoles is described. The process involves sequential C?S and C-N bond formation followed by C(CO)?C bond cleavage from readily accessible starting materials. A wide range of functional groups is tolerated under oxidant and metal-free condition and moderate to good product yields are obtained.

Preparation method of 2-arylbenzothiazole compound

The invention relates to a preparation method of a 2-arylbenzothiazole compound. The method comprises the steps that a benzothiazole compound, diaryliodonium salt, a catalyst, a phosphine ligand and alkali are added into an organic solvent, reacting is conducted for 20-36 hours at the temperature of 60 DEG C to 100 DEG C, and after complete reacting is achieved, reaction liquid is obtained; after the reaction liquid is sequentially subjected to conventional extraction, drying, concentration and column chromatography separation, the compound is obtained. The preparation method belongs to a two-component one-pot reaction, the conditions are mild, the raw materials are easy to prepare and obtain, operation is easy, the yield is high, green environmental protection and economic conservation are achieved, large-scale production can be achieved, and the good application potential on medicine, pesticides, organic synthesis and materials and the good industrial application prospect are achieved.

An efficient synthetic route to biologically relevant 2- phenylbenzothiazoles substituted on the benzothiazole ring

Certain 2-phenylbenzothiazoles containing substituents on the benzothiazole ring possess important biological properties, yet the majority of synthetic methods to 2-phenylbenzothiazoles described to date focus on their unsubstituted ring counterparts. Her

PHENANTHROLINE COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME

The present invention discloses a phenanthroline compound which can be used as electron-transporting material in organic electroluminescence devices is disclosed. The mentioned phenanthroline compound is represented by the following. wherein Ar is selected from the group consisting of hydrogen atom, alkyl, aryl, wherein R1, R2 and R3 are identical or different. R1, R2 and R3 are independently selected from the group consisting of hydrogen atom, alkyl, halide, wherein X1, X2 and X3 are identical or different. X1, X2 and X3 are independently selected from the atom or group consisting of O, S, N—R4 and R4 is selected from the group consisting of hydrogen atom, alkyl, aryl.