17452-98-1

Upstream product

• 1122-91-4 4-bromo-benzaldehyde 
• 586-75-4 4-chlorobenzoyl chloride 
• 69673-99-0 4-bromo-N’-(4-bromobenzoyl)benzohydrazide 
• 19542-05-3 2,5-bis-(4-bromophenyl)-1,3,4-oxadiazole 
• 5933-32-4 4-bromobenzoic acid hydrazide 
• 57477-93-7 hydrazone of p-bromobenzaldehyde 

Downstream Products

• 17463-96-6 2,5-bis(4-biphenylyl)-1,3,4-thiadiazole 
• 770659-32-0 2,5-bis(4-guanylphenyl)-1,3,4-thiadiazole 
• 73819-27-9 4,4'-[1,3,4]oxadiazole-2,5-diyl-bis-benzamidine 

Relevant academic research and scientific papers

ORGANIC COMPOUNDS AND ORGANIC ELECTRO LUMINESCENCE DEVICE COMPRISING THE SAME

The present invention relates to a novel organic compound and an organic electroluminescent device comprising the same. The organic electroluminescent device with improved luminous efficiency, driving voltage, and service life can be provided by introducing a light emitting layer using a triazolebiscarbazole-based compound as a host material to the organic electroluminescent device.

Efficient Synthesis of Conjugated 1,3,4-Thiadiazole Hybrids through Palladium-Catalyzed Cross-Coupling of 2,5-Bis(4-bromophenyl)-1,3,4-thiadiazole with Boronic Acids

New derivatives of 2,5-bis(4-heteroarylphenyl)-1,3,4-thiadiazole were synthesized under Suzuki cross-coupling reactions from 2,5-bis(4-bromophenyl)-1,3,4-thiadiazole and commercially available boronic acids. Reactions were conducted in a two-phase solvent

Synthesis of 1,3,4-thiadiazoles from aldehyde hydrazones

Reaction of p-tolualdehyde hydrazone with disulfur dichloride in the presence of DBU gave 2,5-di (p-tolyl)-1,3,4-thiadiazole (1a) in 54% yield. Phenyldiazomethane also reacted with disulfur dichloride to afford 2,5-diphenyl-1,3,4-thiadiazole (1b) in 80% y

A New Synthesis of Symmetrical 2,5-Diaryl-1,3,4-thiadiazoles

Treatment of aromatic aldehydes with sulfur and hydrazine hydrate in the ratio 1:2:3, respectively, under the Willgerodt conditions affords the title compounds in excellent yields and in a good state of purity.Under the same conditions 2-chloro and 2,6-dichlorobenzaldehyde yield 3H-1,2-benzodithiole-3-thione and bis(2,6-dichlorobenzyl)tetrasulfide, respectively.