1218-52-6

Upstream product

• 20718-17-6 2-(dimethyl(oxo)-λ⁶-sulfaneylidene)-1-phenylethan-1-one 
• 1829-34-1 2-hydroxy-3-bromobenzaldehyde 
• 932-87-6 1-Bromo-2-phenylacetylene 
• 68560-81-6 3'-bromo-2'-hydroxychalcone 
• 1829-37-4 o-bromophenyl acetate 
• 95-56-7 2-hydroxybromobenzene 
• 1836-05-1 3’-bromo-2’-hydroxylacetophenone 
• 98-88-4 benzoyl chloride 

Downstream Products

• 1247006-96-7 8-pinacolatoborylflavone 
• 1247006-94-5 5,8''-biflavone 
• 1062-38-0 8,8''-biflavone 
• 1247006-91-2 7,8''-biflavone 
• 1247006-90-1 6,8''-biflavone 
• 87241-87-0 2,8-diphenyl-chromen-4-one 

Relevant academic research and scientific papers

Photophysical tuning of shortwave infrared flavylium heptamethine dyes via substituent placement

Optical imaging in the shortwave infrared region (SWIR, 1000?2000 nm) provides high-resolution images in complex systems. Here we explore substituent placement on dimethylamino flavylium polymethine dyes, a class of SWIR fluorophores. We find that the pos

HETEROCYCLYL POLYMETHINE IR CHROMOPHORES

The present disclosure provides NIR- and SWIR-active small molecule polymethine dyes with improved properties for use in optical imaging, photothermal therapy, and photodynamic therapy.

Rhodium(III)-catalyzed one-pot synthesis of flavonoids from salicylaldehydes and sulfoxonium ylides

Rh(III)-catalyzed C–H activation of salicylaldehyde followed by an insertion reaction with sulfoxonium ylides and cyclization is applied to the synthesis of flavonoids. This one-pot strategy exhibits good functional group tolerance and gives flavones in moderate-to-good yields.

Synthesis of 4H-Chromen-4-one Derivatives by Intramolecular Palladium-Catalyzed Acylation of Alkenyl Bromides with Aldehydes

The palladium-catalyzed intramolecular acylation of alkenyl bromides and aldehydes was developed for an efficient synthesis of 4H-chromen-4-ones. With Pd(PPh3)4/Xphos as the catalyst and K2CO3 as the base, this protocol was applied to synthesize a small library of diversely functionalized flavonoids in moderate to good yields in 1,4-dioxane.

Synthesis of 8-Bromoflavone and Its Buchwald-Hartwig Reaction with Amines

Simple and convenient synthesis of 8-bromoflavone was achieved, starting from 2-bromophenol through 3′-bromo-2′-hydroxyacetophenone whose preparation was managed to be solved by optimized Fries rearrangement. The Buchwald-Hartwig reaction of 8-bromoflavone with different type of primary and secondary amines was carried out.

Microwave enhanced palladium catalysed coupling reactions: A diversity-oriented synthesis approach to functionalised flavones

Microwave enhanced diversity-oriented synthesis (MEDOS) using palladium catalysed protocols is introduced as a powerful new strategy for the synthesis of systematically modified small molecules and is highlighted by application to functionalised flavones. The Royal Society of Chemistry 2006.