an atmosphere of carbonmonoxide catalyses the reaction of azobenzene derivatives and primary alcohols or their esters to give 2-substituted 1-phenylbenzimidazoles. Substituents in the azobenzene derivatives have a marked effect on the product yields. Where isomer formation can occur, all possible isomers of the product are usually formed. In non-symmetrically substituted azobenzene derivatives, ortho-metallation
HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
申请人:HEESUNG MATERIAL LTD.
公开号:US20200131133A1
公开(公告)日:2020-04-30
The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.