Reversal of Selectivity in Gold-Catalyzed Cyclizations of 3,3-Disubstituted 1,4-Diynes
摘要:
A general synthetic access to 3,3-disubstituted 1,4-diynes bearing a quaternary carbon center from acetylacetone was developed. The compounds were cyclized to the corresponding enol ethers by cationic gold complexes. The reactions occur in complete exo-selectivity in contrast to compounds incorporating an alkoxy substituent in the 3-position. A mechanistic rationale for this reversal of selectivity is provided.
[EN] DINUCLEAR PLATINUM EMITTER COMPLEXES AND METHODS OF MAKING AND USING THEREOF<br/>[FR] COMPLEXES ÉMETTEURS DE PLATINE DINUCLÉAIRES ET LEURS PROCÉDÉS DE FABRICATION ET D'UTILISATION
申请人:[en]VERSITECH LIMITED
公开号:WO2022253220A1
公开(公告)日:2022-12-08
Described herein are dinuclear platinum (II) emitter complexes and their methods of making and using thereof. The design of the dinuclear platinum (II) emitters results in short radiative lifetimes and high quantum yields. The dinuclear platinum (II) emitter complexes can be used to fabricate blue emitting OLEDs.