7383-97-3

Upstream product

• 7711-25-3 N-phenyl-o-phenylenediamine hydrochloride 
• 67-64-1 acetone 
• 67-63-0 isopropyl alcohol 
• 1227476-15-4 Azobenzene 

Relevant academic research and scientific papers

RUTHENIUM-CATALYSED REARRENGEMENTS OF AZOBENZENES III. PREPARATION OF N-PHENYL-1,2-PHENYLENEDIAMINE AND N1-PHENYL-N2-(sec-ALKYL)-1,2-PHENYLENEDIAMINE AND DERIVATIVES THEREOF BY THE RUTHENIUM-CATALYSED REACTION OF AZOBENZENES WITH SECONDARY ALCOHOLS

RuCl3*3H2O in presence of PPh3 and a mild base and under an atmosphere of carbon monoxide catalyses the reaction of azobenzene and 2-propanol to give N-phenyl-1,2-phenylenediamine and N1-phenyl-N2-(2-propyl)-1,2-phenylenediamine.The selectivity towards the two products can be controlled by varying the amount of base (NaOAc or LiOAc) and 2-propanol used.Secondary alcohols which are less effective for N-alkylation than 2-propanol favour the former product.Substituents in the azobenzene derivative have a marked effect on the yield.Where the azobenzene derivative used permits isomer formation within the N-phenylphenylenediamine unit, all possible isomers usually occur.

USE OF TRANSITION METAL CARBENE COMPLEXES IN ORGANIC LIGHT-EMITTING DIODES (OLEDS)

The invention relates to the use of transition metal carbene complexes in organic light-emitting diodes (OLEDS), to a light-emitting layer, a blocking layer for electrons or excitrons or a blocking layer for holes containing these transition metal carbene