20872-11-1

Upstream product

• 20872-27-9 1,6-dichloro-9-oxo-fluorene-4-carboxylic acid 
• 20851-85-8 3,6-dichloro-9,10-phenanthrenequinone 
• 89-77-0 2-Amino-4-chlorobenzoic acid 
• 101-84-8 diphenylether 
• 21239-83-8 3,6,9,10-Tetrachlor-phenanthren 
• 74-11-3 para-chlorobenzoic acid 

Downstream Products

• 34223-82-0 3,6-dichloro-9H-fluoren-9-one 
• 21147-93-3 1,6-Dichlor-fluorenon 

Relevant academic research and scientific papers

Novel phenanthrene compounds, a method of making the same and organic electronic devices using the same

The present invention relates to a new phenanthrene derivative represented by chemical formula 1, and to an organic electronic device using the same. In chemical formula 1, Ar1-Ar3 are substituted or unsubstituted C1-C40 alkyl groups, substituted or unsubstituted C6-C40 aryl groups, substituted or unsubstituted C5-C40 heterocyclic groups, substituted or unsubstituted C6-C40 aryl amino groups, cyano groups, silyl groups, phosphine oxide groups, and thiol groups, independently to each other; L is an integer from 0 to 3. But, there is an exception when all of R1-R6 are hydrogen atoms at the same time, and when Ar2 and Ar3 are aryl groups, at least one among Ar2 and Ar3 is a substituted or unsubstituted anthracene, pyrene, diphenyl fluorene, spiro fluorene, or perylene.

Ruthenium(II) Catalysis/Noncovalent Interaction Synergy for Cross-Dehydrogenative Coupling of Arene Carboxylic Acids

A ruthenium-catalyzed cross-dehydrogenative coupling is developed with the aid of a weakly coordinating carboxylic acid group toward the dimerization of arene carboxylic acids. The protocol is operationally simple and suitable to fabricate diverse homodimerized as well as cross-dimerized products in high yields. Computational insights have also been unveiled to comprehend the plausible reaction mechanism. The critical innovation of the synthetic strategy hinges on the soluble basic additive DBU, which constitutes a synergy of Ru(II)-catalysis with noncovalent interaction and, thus, stabilizes pivotal intermediates to promote the challenging dimerization process.

Bisoxazoline ligands with an axial-unfixed biaryl backbone: the effects of the biaryl backbone and the substituent at oxazoline ring on Cu-catalyzed asymmetric cyclopropanation

The synthesis of novel C2-symmetric bisoxazoline ligands with an axial-unfixed biaryl backbone and different substituents at the oxazoline ring is reported. The diastereomer equilibrium of these ligands in solution and their complexation behavi