83164-99-2

Upstream product

• 64362-19-2 dimethyl 1,4-diphenyl-1,4-dihydro-1,4-epoxynaphthalene-2,3-dicarboxylate 
• 17023-28-8 1,4-Diphenyl-2-benzopyran-3-one 
• 762-42-5 dimethyl acetylenedicarboxylate 
• 23445-28-5 C₄₂H₂₈O₂ 
• 31322-21-1 1-hydroxy-1,3-diphenyl-indan-2-one 
• 950593-84-7 1,8-diphenyl-11-oxatricyclo[6.2.1.0^2,7]undeca-2,4,6-triene-9,10-dicarboxylic acid dimethyl ester 
• 624-48-6 dimethyl cis-but-2-ene-1,4-dioate 
• 100-52-7 benzaldehyde 
• 574-45-8 N-(diphenylmethylidene)phenylamine 
• 186581-53-3 diazomethane 
• 34082-81-0 8-Oxo-1,9-diphenyl-12-oxa-tricyclo[7.2.1.0^2,7]dodeca-2⁽⁷⁾,3,5,10-tetraene-10,11-dicarboxylic acid dimethyl ester 

Relevant academic research and scientific papers

Regioselective arene homologation through rhenium-catalyzed deoxygenative aromatization of 7-oxabicyclo[2.2.1]hepta-2,5-dienes

Combined use of oxorhenium catalysts with triphenyl phosphite as an oxygen acceptor allowed efficient deoxygenative aromatization of oxabicyclic dienes. The reaction proceeded under neutral conditions and was compatible with various functional groups. Combining this deoxygenation with regioselective bromination and trapping of the generated aryne with furan resulted in benzannulative π-extension at the periphery of the PAHs. This enabled direct use of unfunctionalized PAHs for extension of π-conjugation. Iteration of the transformations increased the number of fused-benzene rings one at a time, which has the potential to alter the properties of PAHs by fine-tuning the degree of π-conjugation, shape, and edge topology.

Rhenium-catalyzed synthesis of naphthalene derivatives via insertion of aldehydes into a C-H bond

A rhenium complex, [ReBr(CO)3(THF)]2, catalyzed reactions of aromatic ketimines and aldehydes with dienophiles, followed by dehydration, to give naphthalene derivatives in good to excellent yields. This reaction proceeds via C-H bond activation, insertion of an aldehyde, intramolecular nucleophilic cyclization, reductive elimination, elimination of aniline and Diels-Alder reaction. After dehydration, naphthalene derivatives were formed.

Phototransformations of Epoxyindanone Adducts. Steady-State and Laser Flash Photolysis Studies

The phototransformations of several cycloadducts of 2,3-diphenyl-2,3-epoxy-1-indanone are reported.All these substrates exhibited singlet-state-mediated transformations leading to benzoxocinones, whereas in some cases, depending on the substituents presen